WO2014166425A1 - 设备发现方法、基站及用户设备 - Google Patents
设备发现方法、基站及用户设备 Download PDFInfo
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- WO2014166425A1 WO2014166425A1 PCT/CN2014/075187 CN2014075187W WO2014166425A1 WO 2014166425 A1 WO2014166425 A1 WO 2014166425A1 CN 2014075187 W CN2014075187 W CN 2014075187W WO 2014166425 A1 WO2014166425 A1 WO 2014166425A1
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- WIPO (PCT)
- Prior art keywords
- user equipment
- base station
- list
- equipment list
- downlink control
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 86
- 238000004891 communication Methods 0.000 claims abstract description 66
- 238000012790 confirmation Methods 0.000 claims description 15
- 230000006870 function Effects 0.000 description 39
- 238000010586 diagram Methods 0.000 description 13
- 230000001960 triggered effect Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a device discovery method, a base station, and a user equipment. Background technique
- D2D communication can effectively reduce network load.
- the user equipment User Equipment, UE
- the user equipment can communicate directly with the user equipment without forwarding through the base station, sharing the data load of the base station, and better utilizing spectrum resources to improve spectrum resource utilization. Rate and data rate.
- the present invention provides a device discovery method, a base station, and a user equipment, which are used to solve the problem of mutual discovery between user equipments having D2D functions.
- the present invention provides a user equipment discovery method, the method comprising:
- the base station adds the device information to the user equipment list
- the base station sends the user equipment list to the second user equipment in the coverage of the base station, so that the second user equipment discovers the first user equipment according to the user equipment list.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- the adding the device information to the user equipment list is specifically: when determining the service of the first user equipment When the amount exceeds the threshold, the device information of the first user equipment is added to the user equipment list; and/or, when it is determined that the communication mode of the first user equipment changes, the device information of the first user equipment is added. And to the user equipment list; and/or, adding the device information of the first user equipment to the user equipment list when receiving the joining user equipment list confirmation message or joining the user equipment list request sent by the first user equipment.
- the The sending, by the user equipment, the user equipment list is: sending the user equipment list to a second user equipment that is included in the user equipment list in the coverage of the base station; or Any second user equipment sends the user equipment list.
- the method further includes: receiving a user equipment list request sent by the second user equipment; sending the user equipment to a second user equipment in the coverage of the base station
- the list is specifically: a second user equipment that sends the request for obtaining a user equipment list or a group of second user equipment that includes the second user equipment that sends the user equipment list request.
- the The sending, by the user equipment, the user equipment list is: sending the user equipment list to the second user equipment by using a broadcast channel or a multicast channel; or sending downlink control information to the second user equipment by using a downlink control channel.
- the downlink control information carries the user equipment list; or, the user equipment list is sent by using a physical downlink shared channel; and downlink control information is sent to the second user equipment by using a downlink control channel, where the downlink control information is used for Instructing the second user equipment to acquire the user equipment list on the physical downlink shared channel.
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel;
- the downlink control information is sent by the row control channel to the second user equipment, where the downlink control information is sent to the second user equipment by using a physical downlink control channel or a public or dedicated search space of the enhanced physical downlink control channel.
- a seventh possible implementation manner when the user equipment list is a multiple user equipment list, according to the access time of the first user equipment or the first user equipment The first user equipment is classified by the distance between the base station and the area where the first user equipment is located, and each type of first user equipment forms a user equipment list.
- the method before the sending the user equipment list to the second user equipment in the coverage of the base station, the method further The method includes: sending a classification identifier of the multiple user equipment list to a second user equipment in the coverage of the base station; receiving a user equipment list request sent by the second user equipment, where the acquiring user equipment list request is carried
- the classification identifier corresponding to the user equipment list required by the second user equipment; the sending the user equipment list to the second user equipment in the coverage of the base station is specifically: the second user in the coverage of the base station
- the device sends the user equipment list corresponding to the classification identifier carried by the user equipment list request.
- the method before the sending the user equipment list to the second user equipment in the coverage of the base station, the method further The method includes: sending a classification identifier of the multiple user equipment list to a second user equipment in the coverage of the base station; receiving a user equipment list request sent by the user equipment, where the user equipment list request carries one bit or multiple bits, The plurality of bits are corresponding to the classification identifier; the sending, by the second user equipment in the coverage of the base station, the user equipment list is: when the user equipment list request carries one bit, the base station according to the Determining whether to send a default user equipment list in the plurality of user equipment lists to a second user equipment in the coverage of the base station, or transmitting the coverage to the base station according to a status indicated by the one bit Transmitting, by the second user equipment, a corresponding user equipment list in the plurality of user equipment lists; When the user equipment list request carries a plurality of bits, the base station sends
- the present invention provides a user equipment discovery method, the method includes: acquiring a user equipment list sent by a base station, where the user equipment list includes a plurality of user equipment settings
- the device information includes an identifier when the user equipment uses peer-to-peer communication; and the user equipment is found according to the user equipment list.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- the obtaining, by the base station, the user equipment list is: acquiring, by using a broadcast channel or a multicast channel, a base station The user equipment list; or, the downlink control information is sent by the downlink control channel, where the downlink control information carries the user equipment list; or the downlink control channel acquires the downlink control information sent by the base station, where the downlink control The information carries an indication identifier; and the user equipment list sent by the base station is obtained from the physical downlink shared channel according to the indication identifier.
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel, and the downlink control channel acquires a
- the downlink control information is specifically: acquiring downlink control information sent by the base station by using a physical downlink control channel or a public or dedicated search space of the enhanced physical downlink control channel.
- the method further includes: receiving, by the base station, a classification identifier of the plurality of user equipment lists; sending, to the base station, a user equipment list request, where the acquiring user equipment list request carries a required classification identifier of the user equipment list, where The base station sends the user equipment list corresponding to the classification identifier to the user equipment in the coverage of the base station.
- the method further includes: receiving a classification identifier of the plurality of user equipment lists sent by the base station; sending, by the base station, a user equipment list request, where the acquiring user equipment list request carries one or more bits, the multiple bits Corresponding to the classification identifier; the one bit is used to indicate whether the base station sends the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or is used to indicate that the base station is based on the one bit Transmitting, to the user equipment in the coverage of the base station, a corresponding user equipment list in the multiple user equipment list; the multiple bits are used to indicate that the base station sends the user equipment to the user equipment in the coverage of the base station More The user equipment list corresponding to the classification identifier corresponding to each bit.
- the present invention provides a base station, where the base station includes:
- An acquiring unit configured to acquire device information of the first user equipment, where the device information includes an identifier when the first user equipment uses peer-to-peer communication;
- An adding unit configured to add the device information to the user equipment list
- a first sending unit configured to send the user equipment list to a second user equipment in the coverage of the base station, so that the second user equipment discovers the first user equipment according to the user equipment list.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- the adding unit is specifically configured to: when determining that the traffic volume of the first user equipment exceeds a threshold, The device information of the first user equipment is added to the user equipment list; and/or, when it is determined that the communication mode of the first user equipment changes, the device information of the first user equipment is added to the user equipment list; and Or, the device information of the first user equipment is added to the user equipment list when receiving the user equipment list confirmation message or the user equipment list request sent by the first user equipment.
- the first sending unit is specifically configured to: Transmitting, by the second user equipment, the user equipment list in the coverage of the user equipment, the user equipment list; or sending the user equipment list to any second user equipment in the coverage of the base station
- the base station further includes: a receiving unit, configured to receive Obtaining a user equipment list request sent by the second user equipment; the first sending unit is specifically configured to send the second user equipment that is the user equipment list request or the second user equipment that sends the user equipment list request A set of second user devices within.
- the first sending unit is specifically configured to: Sending the user equipment list to the second user equipment by using a broadcast channel or a multicast channel; or sending downlink control information to the second user equipment by using a downlink control channel, where the downlink control information carries the user equipment list Or sending the user equipment list through the physical downlink shared channel; transmitting downlink control information to the second user equipment by using a downlink control channel, where the downlink control information is used to indicate that the second user equipment is in the physical downlink shared channel Obtain the list of user devices.
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel, and the downlink control channel is used to perform the foregoing
- the sending, by the user equipment, the downlink control information is: sending the downlink control information to the second user equipment by using a physical downlink control channel or a public or dedicated search space of the enhanced physical downlink control channel.
- a seventh possible implementation manner when the user equipment list is a multiple user equipment list, according to the access time of the first user equipment or the first user equipment The first user equipment is classified by the distance between the base station and the area where the first user equipment is located, and each type of first user equipment forms a user equipment list.
- the base station further includes: a second sending unit, configured to send, to the second user equipment in the coverage of the base station And a receiving unit, configured to receive the user equipment list request sent by the second user equipment, where the acquiring the user equipment list request carries the user equipment list required by the second user equipment And the first sending unit is configured to: send, to the second user equipment in the coverage of the base station, the user equipment list corresponding to the classification identifier carried in the user equipment list request.
- the base station further includes: a second sending unit, configured to send, to the second user equipment in the coverage of the base station a receiving identifier of the plurality of user equipment lists; a receiving unit, configured to receive a user equipment list request sent by the user equipment, where the user equipment list request carries one bit or multiple bits, where the multiple bits correspond to the classification identifier;
- the first sending unit is specifically configured to: when the user equipment list request carries one bit, the base station determines, according to the one bit, whether to send the multiple user equipment list to a second user equipment in the coverage of the base station a default user equipment list, or a second user equipment transmission within the coverage of the base station according to the status indicated by the one bit Determining a corresponding user equipment list in the plurality of user equipment lists; when the user equipment list request carries a plurality of bits, the base station sends the user equipment list corresponding to the classification identifier corresponding to the multiple bits to the coverage of the base
- the present invention provides a user equipment, where the user equipment includes:
- an acquiring unit configured to obtain a user equipment list sent by the base station, where the user equipment list includes equipment information of the multiple user equipment, where the equipment information includes an identifier when the user equipment uses peer-to-peer communication;
- a discovery unit configured to discover the user equipment according to the user equipment list.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- the acquiring unit is specifically configured to: acquire, by using a broadcast channel or a multicast channel, the user equipment sent by the base station And obtaining the downlink control information sent by the base station by using the downlink control channel, where the downlink control information carries the user equipment list; or, the downlink control channel acquires the downlink control information sent by the base station, where the downlink control information carries the indication And identifying, according to the indication identifier, the user equipment list sent by the base station from the physical downlink shared channel.
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel, and the downlink control channel acquires a base station sent by using a downlink control channel.
- the downlink control information is specifically: acquiring downlink control information sent by the base station by using a physical downlink control channel or a public or dedicated search space of the enhanced physical downlink control channel.
- the user equipment further includes: a receiving unit, configured to receive when the user equipment list is a plurality of user equipment lists a classification identifier of the plurality of user equipment lists sent by the base station; a second sending unit, configured to send a user equipment list request to the base station, where the user equipment list request carries a required classification identifier of the user equipment list, where The base station sends the user equipment list corresponding to the classification identifier to the user equipment in the coverage of the base station.
- the user equipment further includes: a receiving unit, configured to receive when the user equipment list is a plurality of user equipment lists a classification identifier of the plurality of user equipment lists sent by the base station; a second sending unit, configured to: Sending a user equipment list request to the base station, where the acquiring user equipment list request carries one or more bits, where the multiple bits correspond to the classification identifier; the one bit is used to indicate whether the base station is to the base station
- the user equipment in the coverage area sends the default user equipment list in the multiple user equipment list, or is used to instruct the base station to send the multiple to the user equipment in the coverage of the base station according to the status indicated by the one bit a corresponding user equipment list in the user equipment list; the plurality of bits are used to indicate that the base station sends the user equipment list corresponding to the classification identifier corresponding to the multiple bits to the user equipment in the coverage of the base station.
- the base station By using the device discovery method, the base station, and the user equipment provided by the present invention, the base station adds the acquired device information to the user equipment list, and then sends the user equipment list to the user equipment in its coverage, so that the user equipment sends according to the base station.
- the list of user devices discovers user devices that can communicate with them in D2D.
- FIG. 1 is a flowchart of a device discovery method according to Embodiment 1 of the present invention.
- FIG. 2 is a flowchart of a device discovery method according to Embodiment 2 of the present invention.
- FIG. 3 is a flowchart of a device discovery method according to Embodiment 3 of the present invention.
- FIG. 4 is a flowchart of a device discovery method according to Embodiment 4 of the present invention.
- FIG. 5 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention.
- FIG. 6 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
- FIG. 7 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
- FIG. 8 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention.
- FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention.
- FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention. detailed description
- FIG. 1 is a flowchart of a device discovery method according to Embodiment 1 of the present invention.
- the execution subject of the device discovery method is a base station.
- the device discovery method includes the following steps:
- Step S101 Obtain device information of the first user equipment.
- the first user equipment may be specifically a user equipment having a D2D communication function.
- the device information may include: a D2D communication capability of the first user equipment, a D2D identifier (ID) of the first user equipment, and the like.
- the base station obtains device information by receiving device information sent by the first user equipment.
- the first user equipment may be triggered by an event to send device information to the base station. For example, when the first user equipment in the coverage of the base station is powered on, or when the first user equipment switches from other cells or randomly accesses the base station, the first user equipment in the coverage of the base station has a large amount of point-to-point traffic.
- the first user equipment sends the device information to the base station.
- the first user equipment can also actively send device information to the base station.
- the first user equipment in the coverage of the base station is turned on, when the user does not choose to use the D2D function, the first user equipment does not need to send device information to the base station, and when the user selects to use the D2D function, the device information is sent to the base station. .
- the first user equipment in the coverage of the base station after the power on or using the D2D function, asks the user whether to add the first user equipment to the user equipment list of the base station, and when the user agrees to join, send the first user equipment to the base station.
- Device Information Or the first user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and sends the equipment information of the first user equipment to the base station after obtaining the consent of the base station.
- the base station receives the user equipment list sent by the neighboring base station, and obtains the equipment information from the user equipment list sent by the neighboring base station.
- the base station can receive the user of the neighboring base station by enabling the base station to acquire the device information of the first user equipment that is cut into the coverage of the base station where the base station is located. A device list to obtain device information of the first user equipment currently in the coverage of the neighboring base station.
- Step S102 Add the acquired device information to the user equipment list.
- the base station may directly add the device information to the user equipment list after acquiring the device information.
- the device information may be cached, and the base station determines the service of the first user equipment corresponding to the acquired device information. The amount exceeds the threshold and/or the communication mode changes and/or receives the corresponding
- the first user equipment sends a user equipment list confirmation message or joins the user equipment list request, the device information of the first user equipment is added to the user equipment list.
- Step S103 Send a user equipment list to the second user equipment in the coverage of the base station, where the second user equipment discovers the first user equipment according to the user equipment list.
- the second user equipment may be specifically a user equipment having a D2D communication function.
- the user equipment list is sent to any second user equipment in the coverage of the base station.
- the user equipment list is sent to the second user equipment in the coverage of the base station and included in the user equipment list.
- the base station receives the user equipment list request sent by the second user equipment, and then sends the user equipment list only to the second user equipment that sends the user equipment list request, or receives the second
- the user equipment list is sent to a group of second user equipments including the second user equipment that sends the user equipment list request, or any second user equipment in the coverage of the base station.
- the base station when the base station sends the user equipment list to the second user equipment in its coverage, the base station transmits by using a broadcast channel or a multicast channel; when sending the user equipment list to one or more second user equipments within its coverage range And transmitting, by the multicast channel, the second user equipment acquires the user equipment list from the broadcast channel or the multicast channel, so as to discover the first user equipment that can perform D2D communication according to the user equipment list.
- the base station sends the downlink control information to the second user equipment by using a physical downlink control channel or a public search space or a dedicated search space of the enhanced physical downlink control channel when the user equipment list is sent to the second user equipment in the coverage area.
- the downlink control information carries a list of user equipments. All second user equipments in the coverage of the base station may be from a physical downlink control channel or a common search space of the enhanced physical downlink control channel or a specific second user equipment in the coverage of the base station may be from a physical downlink control channel or an enhanced physical downlink.
- the dedicated search space of the control channel obtains the user equipment list carried by the downlink control information, so that the first user equipment that can perform D2D communication is found according to the user equipment list.
- the base station when the base station sends the user equipment list to the second user equipment in its coverage, the base station sends the user equipment list through the downlink physical shared channel, and uses the physical downlink control channel or the public search space or the dedicated search of the enhanced physical downlink control channel.
- the space sends downlink control information to the user equipment, where the downlink control information carries an indication identifier, where the indication identifier is used to indicate that the second user equipment is in physical
- the row shared channel acquires a list of user devices. All second user equipments in the coverage of the base station may be from a physical downlink control channel or a common search space of the enhanced physical downlink control channel or a specific second user equipment in the coverage of the base station may be from a physical downlink control channel or an enhanced physical downlink.
- the dedicated search space of the control channel acquires the downlink control information, and then obtains the user equipment list sent by the base station from the physical downlink shared channel according to the indication identifier carried in the downlink control information, so as to discover the first user that can perform D2D communication according to the user equipment list. device.
- the base station adds the acquired device information including the user equipment D2D ID to the user equipment list, and then sends the user equipment list to the user equipment in the coverage area, so that the user equipment The user equipment capable of D2D communication with the base device is found according to the user equipment list sent by the base station.
- FIG. 2 is a flowchart of a device discovery method according to Embodiment 2 of the present invention.
- the execution of the device discovery method is a base station.
- the device discovery method includes the following steps:
- Step S201 Acquire device information of the first user equipment.
- the first user equipment may be specifically a user equipment having a D2D communication function.
- the device information may include: D2D communication capability of the first user equipment, D2D ID of the first user equipment, and the like.
- the base station obtains device information by receiving device information sent by the first user equipment.
- the first user equipment may be triggered by an event to send device information to the base station. For example, when the first user equipment in the coverage of the base station is powered on, or when the first user equipment switches from other cells or randomly accesses the base station, the first user equipment in the coverage of the base station has a large amount of point-to-point traffic.
- the first user equipment sends the device information to the base station.
- the first user equipment can also actively send device information to the base station.
- the first user equipment in the coverage of the base station is turned on, when the user does not choose to use the D2D function, the first user equipment does not need to send device information to the base station, and when the user selects to use the D2D function, the device information is sent to the base station. .
- the first user equipment in the coverage of the base station after the power on or using the D2D function, asks the user whether to add the first user equipment to the user equipment list of the base station, and when the user agrees to join, send the first user equipment to the base station.
- Device Information Or the first user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and sends the equipment information of the first user equipment to the base station after obtaining the consent of the base station.
- the base station receives the user equipment list sent by the neighboring base station, and the user sent by the neighboring base station Get device information in the device list.
- the base station can receive the user of the neighboring base station by enabling the base station to acquire the device information of the first user equipment that is cut into the coverage of the base station where the base station is located. A device list to obtain device information of the first user equipment currently in the coverage of the neighboring base station.
- Step S202 Add the acquired device information to the user equipment list.
- the base station may directly add the device information to the user equipment list after acquiring the device information.
- the device information may be cached, and the base station determines the service of the first user equipment corresponding to the acquired device information.
- the device information of the first user equipment is added to In the list of user devices.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- each user equipment list has a classification identifier. There are no restrictions on how to list multiple user devices. For example, the device information of the first user equipment in the local cell is divided into a user equipment list, and the device information of the first user equipment in each neighborhood is respectively divided into a user equipment list; or, according to the user equipment list.
- the time is classified, such as the device information of the first user equipment added to the user equipment list within 10 minutes as the user equipment list 1, and the equipment information of the first user equipment added to the user equipment list within 10-30 minutes as the user Device list 2, device information of the first user equipment added to the user equipment list for more than 30 minutes as the user equipment list 3; or classified according to the distance between the first user equipment and the base station, such as 100 meters from the base station
- the device information of the first user equipment is used as the user equipment list 1.
- the device information of the first user equipment that is 5000 meters away from the base station is used as the user equipment list 2
- the device information of the first user equipment that is more than 5000 meters from the base station is used as the user equipment list. 3.
- the area covered by the base station is divided into multiple sub-areas, and the device information of the first user equipment in each sub-area is used as a user equipment list.
- Step S203 Send a classification identifier of the user equipment list to the second user equipment in the coverage of the base station.
- the second user equipment may be specifically a user equipment having a D2D communication function.
- the base station In order to enable the second user equipment in the coverage of the base station to learn the classification of the multiple user equipment lists, the base station needs to send the classification identifier of the user equipment list to the second user equipment, so as to facilitate the second user equipment according to the classification.
- the class requests a corresponding list of user equipments from the base station.
- Step S204 Receive a user equipment list request sent by the second user equipment.
- the acquiring the user equipment list request carries the classification identifier corresponding to the user equipment list required by the second user equipment, so that the base station sends the corresponding user to the second user equipment in the coverage of the base station according to the received classification identifier.
- Device List carries the classification identifier corresponding to the user equipment list required by the second user equipment, so that the base station sends the corresponding user to the second user equipment in the coverage of the base station according to the received classification identifier.
- the user equipment list request carries one bit or more bits.
- One bit is used to indicate whether the base station sends the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or is used to indicate that the base station informs the second user equipment in the coverage of the base station according to the status indicated by one bit.
- the plurality of bits correspond to the classification identifier, and is used to instruct the base station to determine, according to the classification identifier corresponding to the multiple bits, the user equipment list that is sent to the second user equipment.
- the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification identifier of the user equipment list. , and so on.
- Step S205 Send a user equipment list to the second user equipment in the coverage of the base station.
- the base station After receiving the second user equipment list request sent by the second user equipment, the base station sends only to the second user equipment that sends the user equipment list request or the second user equipment that sends the user equipment list request. The second user equipment or any second user equipment within the coverage of the base station sends the user equipment list.
- the base station when the acquiring the user equipment list request carries the classification identifier, the base station sends the user equipment list corresponding to the classification identifier to the second user equipment in the coverage of the base station according to the received classification identifier.
- the base station when the acquiring user equipment list request carries one bit, if the one bit is 0 (or 1), the base station does not send any user equipment list to the second user equipment in the coverage of the base station; if the one bit is 1 (or 0), the base station sends a default user equipment list in the plurality of user equipment lists to the second user equipment in the coverage of the base station.
- the base station when the acquiring user equipment list request carries one bit, if the one bit is 0 (or 1), the base station sends the first default user equipment list in the multiple user lists to the second user equipment in the coverage of the base station; If the one bit is 1 (or 0), the base station provides a second coverage to the base station The user equipment sends a second default user equipment list in the plurality of user equipment lists.
- the base station when the acquiring the user equipment list request carries multiple bits, the base station first determines, according to the classification identifier corresponding to the multiple bits, the user equipment list to be sent, and then sends the determined content to the second user equipment in the coverage of the base station.
- User device list when the acquiring the user equipment list request carries multiple bits, the base station first determines, according to the classification identifier corresponding to the multiple bits, the user equipment list to be sent, and then sends the determined content to the second user equipment in the coverage of the base station.
- the manner in which the base station sends the user equipment list to the second user equipment is the same as the manner in which the base station sends the user equipment list to the second user equipment in the first embodiment, and details are not described herein again.
- the base station adds the acquired device information including the user equipment D2D ID to the user equipment list, where the user equipment list is a plurality of user equipment lists, and then sends the user equipment to the user equipment.
- the classification identifier of the list so that the user equipment can request the corresponding user equipment list from the base station according to its own needs.
- the base station sends a required user equipment list to the user equipment in its coverage according to the user equipment list request, so that the user equipment finds the user equipment that can perform D2D communication with the user equipment list sent by the base station.
- FIG. 3 is a flowchart of a device discovery method according to Embodiment 3 of the present invention.
- the execution device of the device discovery method is a user equipment, and the user equipment may further be a user equipment having a D2D communication function.
- the device discovery method includes the following steps:
- Step S301 Obtain a user equipment list.
- the user equipment list includes device information, and the device information may include: D2D communication capability of the user equipment, a D2D identifier of the user equipment, and the like.
- the user equipment list is sent by the base station, and the base station first acquires the equipment information of the user equipment, and then adds the equipment information to the user equipment list.
- the base station may obtain device information by receiving a list of user equipments of the neighboring base stations, and may also receive device information sent by the user equipment.
- the method further includes: transmitting device information to the base station.
- the user equipment may be triggered by an event to send device information to the base station. For example, when the user equipment in the coverage of the base station is powered on, when the user equipment switches from another cell or randomly accesses the base station, or the user equipment in the coverage of the base station has a large amount of point-to-point traffic, the user equipment may The base station transmits device information.
- the user equipment can also actively send device information to the base station. For example, after the user equipment in the coverage of the base station is turned on, when the user does not choose to use the D2D function, the user equipment does not need to send the device information to the base station, and when the user selects to use the D2D function, the device information is sent to the base station. Interest.
- the user is asked whether to add the user equipment to the user equipment list of the base station.
- the device information of the user equipment is sent to the base station.
- the user equipment in the coverage of the base station sends a request for joining the user equipment list of the base station to the base station, and sends the equipment information of the user equipment to the base station after obtaining the consent of the base station.
- the method may further include: sending a join user equipment list confirmation message or joining the user equipment list request to the base station, so that the base station receives the join user equipment list confirmation message or joins the user equipment list request, Add the received device information to the user device list.
- the user equipment can directly obtain a list of user equipments sent by the base station.
- the user equipment may send a request for acquiring the user equipment list to the base station, so that after receiving the user equipment list, the base station sends the user equipment list to the user equipment in the coverage area.
- the user equipment acquires a list of user equipments sent by the base station by using a broadcast channel or a multicast channel.
- the user equipment acquires downlink control information sent by the base station by using a physical downlink control channel or a common search space or a dedicated search space of the enhanced physical downlink control channel, where the downlink control information carries a user equipment list.
- the user equipment acquires downlink control information by using a physical downlink control channel or a common search space or a dedicated search space of the enhanced physical downlink control channel, where the downlink control information carries an indication identifier, and then the user equipment shares the physical downlink according to the indication identifier.
- the channel acquires a list of user equipments sent by the base station.
- Step S302 Discover the user equipment according to the obtained user equipment list.
- the user equipment finds a user equipment capable of D2D communication with the user equipment list according to the obtained user equipment list.
- the user equipment finds that the user equipment D2D ID can be used for D2D communication according to the user equipment list. User equipment.
- FIG. 4 is a flowchart of a device discovery method according to Embodiment 4 of the present invention.
- the execution body of the device discovery method is a user equipment, and the user equipment may further be a user equipment having a D2D communication function.
- the device discovery method includes the following steps:
- Step S401 Receive a classification identifier of a user equipment list sent by the base station.
- the user equipment list includes device information, which may include: D2D communication capabilities of the user equipment, D2D identifiers of the user equipment, and the like.
- the user equipment list is a list of multiple user equipments, and each user equipment list has a classification identifier. There are no restrictions on how to list multiple user devices. For example, the device information of the user equipment in the cell is divided into a user equipment list, and the device information of the user equipment in each neighboring area is respectively divided into a user equipment list; or, according to the time of joining the user equipment list Or classifying according to the distance between the user equipment and the base station; or dividing the area covered by the base station into a plurality of sub-areas, and the device information corresponding to the user equipment in each sub-area as a user equipment list.
- the base station may obtain the device information by receiving the user equipment list of the neighboring base station, and may also receive the device information sent by the user equipment.
- the method further includes: the user equipment transmitting the device information to the base station.
- the user equipment may be triggered by an event to send device information to the base station. For example, when the user equipment in the coverage of the base station is powered on, when the user equipment switches from another cell or randomly accesses the base station, or the user equipment in the coverage of the base station has a large amount of point-to-point traffic, the user equipment may The base station transmits device information.
- the user equipment can also actively send device information to the base station. For example, after the user equipment in the coverage of the base station is turned on, when the user does not choose to use the D2D function, the user equipment does not need to send the device information to the base station, and when the user chooses to use the D2D function, the device information is sent to the base station.
- the user is asked whether to add the user equipment to the user equipment list of the base station.
- the device information of the user equipment is sent to the base station.
- the user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and sends the equipment information of the user equipment to the base station after obtaining the consent of the base station.
- the method may further include: sending a join user equipment list acknowledgement message or joining the user equipment list request to the base station, so that the base station receives the user equipment list confirmation message or joins the user equipment list request, and the received equipment is received. Information is added to the list of user devices.
- Step S402 Send a request for acquiring a user equipment list to the base station.
- the acquiring the user equipment list request carries the classification identifier corresponding to the user equipment list required by the user equipment, so that the base station sends the user equipment in the coverage of the base station according to the received classification identifier. Send the corresponding list of user devices.
- the acquiring user equipment list request carries one bit or multiple bits.
- One bit is used to indicate whether the base station sends the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or is used to indicate that the base station sends the user equipment in the coverage of the base station according to the status indicated by one bit.
- a corresponding user equipment list in the user equipment list, wherein the default user equipment list may be one, multiple or all user equipment lists. For example, when the one bit is 0 (or 1), the base station is instructed not to send any user equipment list to the user equipment in the coverage of the base station; when the one bit is 1 (or 0), the base station is indicated to be within the coverage of the base station.
- the user equipment sends a list of default user equipments in a plurality of user equipment lists. Or, when the user equipment list request is one bit, if the one bit is 0 (or 1), the base station sends the first default user equipment list to the user equipment in the coverage of the base station; if the one bit is 1 (or 0) And instructing the base station to send the second default user equipment list to the user equipment indicating the coverage of the base station. And a plurality of bits corresponding to the classification identifier, configured to indicate, by the base station, the user equipment list sent to the user equipment according to the classification identifier corresponding to the multiple bits.
- the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification of the user equipment list 3.
- the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification of the user equipment list 3.
- logo and so on.
- Step S403 Obtain a user equipment list sent by the base station.
- the manner in which the user equipment obtains the user equipment list is the same as the process in which the user equipment obtains the user equipment list in the third embodiment, and details are not described herein again.
- Step S404 Discover the user equipment according to the obtained user equipment list.
- the user equipment finds a user equipment capable of D2D communication with the user equipment list according to the obtained user equipment list.
- the user equipment list in the base station is one or more user equipment lists, and the user equipment receives the classification identifier of the user equipment list sent by the base station, and then requests the corresponding user according to the needs of the base station.
- the device list is configured to receive the user equipment list that is sent by the base station according to the user equipment list request. Since the equipment information in the user equipment list includes the D2D ID of the user equipment, the user equipment can discover that the user equipment can perform D2D communication according to the user equipment list sent by the base station. User equipment.
- FIG. 5 is a schematic diagram of the present invention.
- the base station is used to implement the device discovery method provided in Embodiment 1 of the present invention.
- the base station includes: an obtaining unit 510, an adding unit 520, and a first sending unit 530.
- the obtaining unit 510 is configured to obtain device information of the first user equipment, where the device information includes a D2D communication capability of the first user equipment, a D2D ID of the first user equipment, and the like.
- the obtaining unit 510 is specifically configured to obtain device information by receiving device information sent by the first user equipment.
- the first user equipment may be triggered by an event to send device information to the base station. For example, when the first user equipment in the coverage of the base station is powered on, or when the first user equipment switches from other cells or randomly accesses the base station, the first user equipment in the coverage of the base station has a large amount of point-to-point traffic.
- the first user equipment sends the device information to the base station.
- the first user equipment can also actively send device information to the base station. For example, after the first user equipment in the coverage of the base station is turned on, when the user does not choose to use the D2D function, the first user equipment does not need to send device information to the base station, and when the user selects to use the D2D function, the device information is sent to the base station. .
- the first user equipment in the coverage of the base station after the power on or using the D2D function, asks the user whether to add the first user equipment to the user equipment list of the base station, and when the user agrees to join, send the first user equipment to the base station.
- Device Information Or the first user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and sends the equipment information of the first user equipment to the base station after obtaining the consent of the base station.
- the obtaining unit 510 is specifically configured to receive a user equipment list sent by the neighboring base station, and obtain device information from the user equipment list sent by the neighboring base station.
- the base station can receive the user of the neighboring base station by enabling the base station to acquire the device information of the first user equipment that is cut into the coverage of the base station where the base station is located. A device list to obtain device information of the first user equipment currently in the coverage of the neighboring base station.
- the adding unit 520 is configured to add the acquired device information to the user equipment list.
- the adding unit 520 may directly add the device information to the user equipment list; or may cache the obtained device information, when the base station determines the device information that is acquired by the base station.
- the traffic of the first user equipment exceeds the threshold and/or the communication mode changes and/or the corresponding user equipment list confirmation message sent by the corresponding first user equipment is received or
- the device information of the first user equipment is added to the user equipment list.
- the first sending unit 530 is configured to send a user equipment list to the second user equipment in the coverage of the base station, where the second user equipment discovers the first user equipment according to the user equipment list.
- the second user equipment may be specifically a user equipment having a D2D communication function.
- the first sending unit 530 sends the user equipment list to any second user equipment in the coverage of the base station.
- the first sending unit 530 sends the user equipment list to the second user equipment included in the user equipment list and in the user equipment list.
- the base station may further include a receiving unit 540.
- the receiving unit 540 receives the acquiring user equipment list request sent by the second user equipment, and then the first sending unit 530 only Sending, by the second user equipment that obtains the user equipment list request, the user equipment list, or after the receiving unit 540 receives the acquiring user equipment list request sent by the second user equipment, to the second user equipment that includes sending the user equipment list request
- a set of second user equipments within the set of second user equipments or base stations within the coverage of the base station transmits a list of user equipments.
- the first sending unit 530 sends, by using a broadcast channel or a multicast channel, when sending the user equipment list to the second user equipment in its coverage; sending to one or more second user equipments within its coverage range
- the user equipment list may be transmitted through a multicast channel, and the second user equipment acquires a user equipment list from a broadcast channel or a multicast channel, thereby discovering the first user equipment that can perform D2D communication according to the user equipment list.
- the first sending unit 530 sends the user equipment list to the second user equipment by using a physical downlink control channel or a public search space or a dedicated search space of the enhanced physical downlink control channel.
- Downlink control information the downlink control information carries a list of user equipments. All second user equipments in the coverage of the base station may be from a physical downlink control channel or a common search space of the enhanced physical downlink control channel or a specific second user equipment in the coverage of the base station may be from a physical downlink control channel or an enhanced physical downlink.
- the dedicated search space of the control channel acquires a list of user equipments carried by the downlink control information, so that the first user equipment that can perform D2D communication is found according to the user equipment list.
- the first sending unit 530 when the first sending unit 530 sends the user equipment list to the second user equipment in its coverage, the first sending unit 530 sends the user equipment list through the downlink physical shared channel, and passes the physical downlink control signal.
- the common search space or the dedicated search space of the PDCCH or the enhanced physical downlink control channel sends the downlink control information to the user equipment, where the downlink control information carries an indication identifier, where the indication identifier is used to indicate that the second user equipment acquires the user equipment on the physical downlink shared channel. List.
- All second user equipments in the coverage of the base station may be from a physical downlink control channel or a common search space of the enhanced physical downlink control channel or a specific second user equipment in the coverage of the base station may be from a physical downlink control channel or an enhanced physical downlink.
- the dedicated search space of the control channel acquires the downlink control information, and then obtains the user equipment list sent by the base station from the physical downlink shared channel according to the indication identifier carried in the downlink control information, so as to discover the first user that can perform D2D communication according to the user equipment list. device.
- the base station adds the acquired device information including the user equipment D2D ID to the user equipment list, and then sends the user equipment list to the user equipment in the coverage area, so that the user equipment according to the base station
- the transmitted user equipment list finds the user equipment with which D2D communication can be performed.
- the foregoing base station is used to implement the device discovery method according to the first embodiment, and the included units are only divided according to functional logic, but are not limited to the foregoing division, as long as the corresponding functions can be implemented.
- the specific names of the respective functional units are only for the purpose of facilitating mutual differentiation, and are not intended to limit the scope of protection of the present invention.
- FIG. 6 is a schematic structural diagram of a base station according to Embodiment 6 of the present invention.
- the base station is configured to implement the device discovery method provided by the second embodiment of the present invention.
- the base station includes: an obtaining unit 610, an adding unit 620, a second sending unit 630, a receiving unit 640, and a first sending unit 650.
- the obtaining unit 610 is configured to acquire device information of the first user equipment.
- the first user equipment may be specifically a user equipment having a D2D communication function.
- the device information may include: D2D communication capability of the user equipment, D2D ID of the user equipment, and the like.
- the obtaining unit 610 is specifically configured to obtain device information by receiving device information sent by the first user equipment.
- the first user equipment may be triggered by an event to send device information to the base station.
- the first user equipment can also actively send device information to the base station.
- the obtaining unit 610 is specifically configured to receive the user equipment list sent by the neighboring cell base station, and obtain the device information from the user equipment list sent by the neighboring cell base station.
- the adding unit 620 is configured to add the acquired device information to the user equipment list.
- the adding unit 620 directly adds the device information to the user equipment list; and may also cache the obtained device information, and when the base station determines the device information corresponding to the obtained device information, When the traffic of a user equipment exceeds a threshold and/or a communication mode changes and/or receives a user equipment list confirmation message or a user equipment list request sent by the corresponding first user equipment, the first user equipment is used. Device information is added to the list of user devices.
- the user equipment list is a user equipment list or a plurality of user equipment lists.
- each user equipment list has a classification identifier. There are no restrictions on how to list multiple user devices. For example, the device information of the first user equipment in the local cell is divided into a user equipment list, and the device information of the first user equipment in each neighborhood is respectively divided into a user equipment list; or, according to the user equipment list.
- the time is classified, such as the device information of the first user equipment added to the user equipment list within 10 minutes as the user equipment list 1, and the equipment information of the first user equipment added to the user equipment list within 10-30 minutes as the user Device list 2, device information of the first user equipment added to the user equipment list for more than 30 minutes as the user equipment list 3; or classified according to the distance between the first user equipment and the base station, such as 100 meters from the base station
- the device information of the first user equipment is used as the user equipment list 1.
- the device information of the first user equipment that is 5000 meters away from the base station is used as the user equipment list 2
- the device information of the first user equipment that is more than 5000 meters from the base station is used as the user equipment list. 3.
- the area covered by the base station is divided into multiple sub-areas, and the device information of the first user equipment in each sub-area is used as a user equipment list.
- the second sending unit 630 is configured to send the classification identifier of the user equipment list to the second user equipment in the coverage of the base station.
- the second sending unit 630 needs to send the classification identifier of the user equipment list to the second user equipment, so that the second user equipment requests the base station according to the classification.
- a list of corresponding user devices A list of corresponding user devices.
- the receiving unit 640 is configured to receive the acquiring user equipment list request sent by the second user equipment.
- the acquiring the user equipment list request carries the classification identifier corresponding to the user equipment list required by the second user equipment, so that the base station sends the corresponding user to the second user equipment in the coverage of the base station according to the received classification identifier.
- Device List the acquiring user equipment list request carries one bit or multiple bits. One bit is used to indicate whether the base station sends the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or is used to indicate that the base station informs the second user equipment in the coverage of the base station according to the status indicated by one bit. Sending a corresponding user equipment list in the plurality of user equipment lists, where the default user equipment list may be one, multiple or all user equipment lists.
- the plurality of bits corresponding to the classification identifier configured to indicate, by the base station, the user equipment list sent to the second user equipment according to the classification identifier corresponding to the multiple bits. For example, if there are eight user equipment lists in the base station, then the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification identifier of the user equipment list. , and so on.
- the first sending unit 650 is configured to send the user equipment list to the second user equipment in the coverage of the base station.
- the first sending unit 650 is only required to send the second user equipment that obtains the user equipment list request or the second user equipment or the base station that includes the second user equipment that sends the user equipment list request.
- the second user equipment sends a list of user equipments.
- the first sending unit 650 sends the user equipment list corresponding to the classification identifier to the second user equipment in the coverage of the base station according to the received classification identifier.
- the first sending unit 650 when the user equipment list request is one bit, if the one bit is 0 (or 1), the first sending unit 650 does not send any user equipment list to the second user equipment in the coverage of the base station; When one bit is 1 (or 0), the first sending unit 630 sends the default user equipment list in the plurality of user equipment lists to the second user equipment in the coverage of the base station.
- the first sending unit 630 sends the first default user of the multiple user lists to the second user equipment in the coverage of the base station. If the one bit is 1 (or 0), the first sending unit 630 sends the second default user equipment list in the plurality of user equipment lists to the second user equipment in the coverage of the base station.
- the first sending unit 650 When the user equipment list is requested to be a plurality of bits, the first sending unit 650 first determines, according to the classification identifier corresponding to the multiple bits, the user equipment list to be sent, and then sends the determined user to the second user equipment in the coverage of the base station. Device List.
- the manner in which the first sending unit 650 sends the user equipment list to the second user equipment is the same as the manner in which the first sending unit 530 sends the user equipment list to the second user equipment in the fifth embodiment, and details are not described herein again.
- the base station adds the acquired device information including the D2D ID of the user equipment to the user equipment list, where the user equipment list is a plurality of user equipment lists, and then sends the user equipment list to the user equipment.
- the classification identifier is such that the user equipment can request the corresponding user equipment list from the base station according to its own needs.
- the base station sends a required user equipment list to the user equipment in its coverage according to the user equipment list request, so that the user equipment discovers the user equipment that can perform D2D communication with the user equipment list sent by the base station.
- the foregoing base station is used to implement the device discovery method in the second embodiment, and the included units are only divided according to functional logic, but are not limited to the foregoing division, as long as the corresponding functions can be implemented.
- the specific names of the respective functional units are only for the purpose of facilitating mutual differentiation, and are not intended to limit the scope of protection of the present invention.
- FIG. 7 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
- the base station includes a transceiver 710, a memory 720, and a processor 730 coupled to the transceiver 710 and the memory 720, respectively.
- the base station may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
- the embodiment of the present invention is not limited herein.
- the base station can be used to implement the device discovery method according to the first embodiment and the second embodiment of the present invention.
- the transceiver 710 is configured to communicate with devices such as user equipments and other base stations.
- a set of program codes is stored in the memory 720, and the processor 730 is configured to call the program code stored in the memory 720 for performing the following operations:
- Obtaining device information of the first user equipment where the device information includes an identifier when the first user equipment uses peer-to-peer communication;
- the user equipment list is a user equipment list or a plurality of user equipment lists. Further, the adding the device information to the user equipment list is specifically:
- the device information of the first user equipment is determined Adding to the user equipment list; and/or, when determining that the communication mode of the first user equipment changes, adding the device information of the first user equipment to the user equipment list; and/or, receiving the first user
- the device joins the user equipment list confirmation message or joins the user equipment list request the device information of the first user equipment is added to the user equipment list.
- the sending the user equipment list to the second user equipment in the coverage of the base station is specifically:
- the processor 730 calls the program code stored in the memory 720, and is further configured to perform the following operations:
- Receiving, by the second user equipment, the acquiring user equipment list request; the sending, to the second user equipment in the coverage of the base station, the user equipment list is specifically: sending the second user equipment requesting the user equipment list request Or a group of second user equipments that send the second user equipment that obtains the user equipment list request.
- the sending the user equipment list to the second user equipment in the coverage of the base station is specifically:
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel, and the downlink control information is sent to the second user equipment by using a downlink control channel, where the physical control information is: A common or dedicated search space of the channel transmits downlink control information to the second user equipment.
- the user equipment list is a plurality of user equipment lists, according to an access time of the first user equipment or a distance between the first user equipment and the base station or an area where the first user equipment is located The first user equipment is classified, and each type of first user equipment forms a user equipment list. Further, before the sending the user equipment list to the second user equipment in the coverage of the base station, the processor 730 calls the program code stored in the memory 720, and is further configured to:
- the user equipment list is: sending the second user equipment in the coverage of the base station to the second user equipment in the coverage of the base station. And obtaining the user equipment list corresponding to the classification identifier carried by the user equipment list request.
- the processor 730 calls the program code stored in the memory 720, and is further configured to perform the following operations:
- the sending, by the second user equipment in the coverage of the base station, the user equipment list is: when the user equipment list request carries one bit, the base station is configured according to the one bit Determining whether to send a default user equipment list in the multiple user equipment list to a second user equipment in the coverage of the base station, or sending a second to the base station coverage according to the status indicated by the one bit
- the user equipment sends a corresponding user equipment list in the plurality of user equipment lists; when the user equipment list requests to carry multiple bits, the base station sends the user equipment list corresponding to the classification identifier corresponding to the multiple bits to the The second user equipment within the coverage of the base station.
- the base station adds the acquired device information including the user equipment D2D ID to the user equipment list, where the user equipment list is one or more user equipment lists, and then sends the user equipment to the user equipment.
- the classification identifier of the list so that the user equipment can request the corresponding user equipment list from the base station according to its own needs.
- the base station sends a required user equipment list to the user equipment in its coverage according to the user equipment list request, so that the user equipment finds the user equipment that can perform D2D communication with the user equipment list sent by the base station.
- FIG. 8 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention.
- the user equipment has a D2D communication function, and is used to implement the device discovery method provided by the third embodiment of the invention.
- the user equipment includes: an obtaining unit 810 and a finding unit 820.
- the obtaining unit 810 is configured to obtain a user equipment list, where the user equipment list includes device information, where the device information includes a D2D communication capability of the user equipment, a D2D identifier of the user equipment, and the like.
- the user equipment list is sent by the base station, and the base station first acquires the equipment information of the user equipment, and then adds the equipment information to the user equipment list.
- the base station may obtain device information by receiving a list of user equipments of the neighboring base stations, and may also receive device information sent by the user equipment.
- the user equipment further includes a first sending unit 830, configured to send device information to the base station.
- the user equipment may be triggered by an event such that the first sending unit 830 sends the device information to the base station.
- the first sending unit 830 sends the device information to the base station.
- the user equipment in the coverage of the base station is powered on, when the user equipment switches from another cell or randomly accesses the base station, or the user equipment in the coverage of the base station has a large amount of point-to-point traffic
- the first sending unit 830 The device information is sent to the base station.
- the user equipment may also cause the first transmitting unit 830 to actively transmit device information to the base station.
- the first sending unit 830 does not need to send the device information to the base station.
- the first sending unit 830 redirects.
- the base station transmits device information.
- the user is asked whether to add the user equipment to the user equipment list of the base station.
- the first sending unit 830 sends the equipment of the user equipment to the base station. information.
- the user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and after obtaining the consent of the base station, the first sending unit 830 sends the equipment information of the user equipment to the base station.
- the user equipment may further include: a second sending unit 840, configured to send a join user equipment list confirmation message or a join user equipment list request to the base station, so that the base station receives the join user equipment list confirmation message or joins the user equipment.
- a second sending unit 840 configured to send a join user equipment list confirmation message or a join user equipment list request to the base station, so that the base station receives the join user equipment list confirmation message or joins the user equipment.
- the received device information is added to the user device list.
- the obtaining unit 810 can directly obtain the user equipment list sent by the base station.
- the device further includes a third sending unit 850.
- the third sending unit 850 sends a acquiring user equipment list request to the base station, so that the base station receives the obtained user equipment list. After that, the user equipment list is sent to the user equipment within its coverage.
- the obtaining unit 810 acquires a user equipment list sent by the base station by using a broadcast channel or a multicast channel.
- the acquiring unit 810 acquires a downlink control channel sent by the base station by using a physical downlink control channel or a common search space or a dedicated search space of the enhanced physical downlink control channel, where the downlink channel control information carries a user equipment list.
- the obtaining unit 810 acquires downlink control information by using a physical downlink control channel or a common search space or a dedicated search space of the enhanced physical downlink control channel, where the downlink control information carries an indication identifier, and then the acquiring unit 810 identifies the physical identifier according to the indication.
- the downlink shared channel acquires a list of user equipments sent by the base station.
- the discovery unit 820 is configured to discover the user equipment according to the obtained user equipment list.
- the discovery unit 820 finds the user equipment with which the D2D communication can be performed based on the obtained user equipment list.
- the user equipment After the user equipment obtains the user equipment list including the equipment information, the user equipment finds the user who can perform D2D communication with the user equipment list according to the user equipment list. device.
- the foregoing user equipment is used to implement the device discovery method in the third embodiment, and the included units are only divided according to functional logic, but are not limited to the foregoing division, as long as the corresponding functions can be implemented.
- the specific names of the functional units are only for the purpose of facilitating mutual differentiation, and are not intended to limit the scope of protection of the present invention.
- FIG. 9 is a schematic structural diagram of a user equipment according to Embodiment 9 of the present invention.
- the user equipment has a D2D communication function, and is used to implement the device discovery method provided by the fourth embodiment of the invention.
- the user equipment includes: a receiving unit 910, a first sending unit 920, a third sending unit 930, an obtaining unit 940, and an obtaining unit 950.
- the receiving unit 910 is configured to receive a classification identifier of the sub-user equipment list sent by the base station.
- the user equipment list includes device information, which may include: D2D communication capabilities of the user equipment, D2D identifiers of the user equipment, and the like.
- the user equipment list is a list of multiple user equipments, and each user equipment list has a classification identifier.
- many is no limit to the classification of user device lists.
- the device information of the user equipment in the cell is divided into a user equipment list, and the device information of the user equipment in each neighboring area is respectively divided into a user equipment list; or, according to the time of joining the user equipment list Or classifying according to the distance between the user equipment and the base station; or dividing the area covered by the base station into a plurality of sub-areas, and the device information corresponding to the user equipment in each sub-area as a user equipment list.
- the base station may obtain the device information by receiving the user equipment list of the neighboring base station, and may also receive the device information sent by the user equipment.
- the first sending unit 920 is configured to send the device information to the base station by the user equipment.
- the user equipment may be triggered by an event such that the first sending unit 920 sends the device information to the base station.
- the first sending unit 920 sends the device information to the base station.
- the user equipment may also cause the first transmitting unit 920 to actively transmit device information to the base station.
- the first sending unit 920 does not need to send the device information to the base station, and when the user selects to use the D2D function, the first sending unit 920 redirects.
- the base station transmits device information.
- the user is asked whether to add the user equipment to the user equipment list of the base station.
- the first sending unit 920 sends the equipment of the user equipment to the base station. information.
- the user equipment in the coverage of the base station sends a request for joining the user equipment list to the base station, and after obtaining the consent of the base station, the first sending unit 920 sends the equipment information of the user equipment to the base station.
- the user equipment may further include: a second sending unit 960, configured to send a join user equipment list acknowledgement message or join a user equipment list request to the base station, so that the base station receives the join user equipment list confirmation message or joins the user equipment When the list is requested, the received device information is added to the user device list.
- a second sending unit 960 configured to send a join user equipment list acknowledgement message or join a user equipment list request to the base station, so that the base station receives the join user equipment list confirmation message or joins the user equipment When the list is requested, the received device information is added to the user device list.
- the third transmitting unit 930 sends a request for acquiring a user equipment list to the base station.
- the acquiring the user equipment list request carries the classification identifier corresponding to the user equipment list required by the user equipment, so that the base station sends the corresponding user equipment list to the user equipment in the coverage of the base station according to the received classification identifier.
- the acquiring user equipment list request carries one bit or multiple bits.
- One bit Instructing the base station to send the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or to instruct the base station to send multiple user equipments to the user equipment in the coverage of the base station according to the status indicated by one bit
- a list of corresponding user devices in the list, wherein the default user device list may be one, multiple, or all user device lists. For example, when the one bit is 0 (or 1), the base station is instructed not to send any user equipment list to the user equipment in the coverage of the base station; when the one bit is 1 (or 0), the base station is indicated to be within the coverage of the base station.
- the user equipment sends a list of default user equipments in a plurality of user equipment lists. Or, when the user equipment list request is one bit, if the one bit is 0 (or 1), the base station sends the first default user equipment list to the user equipment in the coverage of the base station; if the one bit is 1 (or 0) And instructing the base station to send the second default user equipment list to the user equipment indicating the coverage of the base station.
- the plurality of bits correspond to the classification identifier, and is used to indicate that the base station determines, according to the classification identifier corresponding to the multiple bits, the user equipment list that is sent to the user equipment.
- the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification of the user equipment list 3.
- the multiple bits are 3 bits, where 000 corresponds to the classification identifier of the user equipment list 1, 001 corresponds to the classification identifier of the user equipment list 2, and 010 corresponds to the classification of the user equipment list 3.
- logo and so on.
- the obtaining unit 940 is configured to obtain a list of user equipments sent by the base station.
- the manner in which the obtaining unit 940 obtains the user equipment list is the same as the method in which the obtaining unit 810 obtains the user equipment list in the eighth embodiment, and details are not described herein again.
- the discovery unit 950 is configured to discover the user equipment according to the obtained user equipment list.
- the discovery unit 950 discovers the user equipment with which the D2D communication can be performed based on the obtained user equipment list.
- the user equipment list in the base station is one or more user equipment lists, and the user equipment receives the classification identifier of the user equipment list sent by the base station, and then requests the corresponding user equipment according to the requirements of the base station.
- the user equipment list can be sent to the user equipment list according to the user equipment list request. Since the equipment information in the user equipment list includes the D2D ID of the user equipment, the user equipment can discover the user who can perform D2D communication with the user equipment list sent by the base station. device.
- FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
- the user equipment includes a transceiver 1010, a memory 1020, and a processor 1030 coupled to the transceiver 1010 and the memory 1020, respectively.
- the user equipment may also include a common component such as an antenna, a baseband processing component, a medium frequency processing component, and an input/output device.
- the embodiment of the present invention is not limited herein.
- the user equipment can be used to implement the device discovery method according to Embodiment 3 and Embodiment 4 of the present invention.
- the transceiver 1010 is configured to communicate with a device such as a base station.
- a set of program codes is stored in the memory 1020, and the processor 1030 is configured to call the program code stored in the memory 1020 for performing the following operations:
- the user equipment list includes equipment information of the plurality of user equipments, where the equipment information includes an identifier when the user equipment uses peer-to-peer communication;
- the user equipment list is a user equipment list or a plurality of user equipment lists. Further, the obtaining the user equipment list sent by the base station is specifically:
- the downlink control channel includes a physical downlink control channel or an enhanced physical downlink control channel.
- the downlink control information that is sent by the base station by using the downlink control channel is specifically: a public downlink control channel or a public downlink control channel.
- the dedicated search space acquires downlink control information sent by the base station.
- the processor 1030 calls the program code stored in the memory 1020, and is also used to perform the following operations:
- the processor 1030 calls the program code stored in the memory 1020, and is also used to perform the following operations:
- the base station And receiving, by the base station, a classification identifier of the multiple user equipment list, and sending, by the base station, a user equipment list request, where the acquiring user equipment list request carries one bit or multiple bits, where the multiple bits correspond to the classification And the one bit is used to indicate whether the base station sends the default user equipment list in the multiple user equipment list to the user equipment in the coverage of the base station, or is used to indicate the status indicated by the base station according to the one bit.
- the user equipment list in the base station includes multiple sub-user equipment lists, and the user equipment receives the classification identifier of the sub-user equipment list sent by the base station, and then requests the user equipment list or corresponding to the base station according to its own requirements.
- the sub-user device list, the receiving user equipment list or the sub-user device list sent by the base station according to the user equipment list request since the user equipment list or the device information in the sub-user equipment list includes the D2D ID of the user equipment, the user equipment may The user equipment list or the sub-user equipment list sent by the base station discovers the user equipment with which D2D communication can be performed.
- the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
- the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, A register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
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Abstract
本发明涉及一种用户设备发现方法、基站及用户设备。该设备发现方法包括:基站获取第一用户设备的设备信息,所述设备信息包括所述第一用户设备采用点对点通信时的标识符;基站将所述设备信息增添到用户设备列表;基站向所述基站覆盖范围内的第二用户设备发送所述用户设备列表,以使得所述第二用户设备根据所述用户设备列表发现所述第一用户设备。
Description
设备发现方法、 基站及用户设备
本申请要求于 2013 年 04 月 11 日提交中国专利局、 申请号为 201310125127.1、 发明名称为 "设备发现方法、 基站及用户设备" 的中国专利 申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及通信技术领域,尤其涉及一种设备发现方法、基站及用户设备。 背景技术
随着无线通信技术的飞速发展, 超大速率业务越来越多, 因此无线通信网 络的负载越来越重。 目前, 通过设备间 (Device to Device, D2D )通信可有效 减轻网络负载。 在 D2D通信模式中, 用户设备( User Equipment, UE )与用户 设备之间可以直接通信, 而不需要经过基站转发, 分担了基站的数据负载, 并 且能够更好的利用频谱资源, 提高频谱资源利用率及数据速率。
在用户设备与其它用户设备进行 D2D通信之前,首先需要发现可进行 D2D 通信的用户设备。 因此, 用户设备如何发现可进行 D2D通信的 UE是目前最需 要解决的问题。 发明内容
有鉴于此, 本发明提供一种设备发现方法、基站及用户设备, 用以解决具 有 D2D功能的用户设备之间互相发现的问题。
在第一方面, 本发明提供一种用户设备发现方法, 该方法包括:
基站获取第一用户设备的设备信息,所述设备信息包括所述第一用户设备 釆用点对点通信时的标识符;
基站将所述设备信息增添到用户设备列表;
基站向所述基站覆盖范围内的第二用户设备发送所述用户设备列表,以使 得所述第二用户设备根据所述用户设备列表发现所述第一用户设备。
在第一方面的第一种可能实现的方式中,所述用户设备列表为一个用户设 备列表或多个用户设备列表。
结合第一方面或第一方面的第一种可能实现的方式,在第二种可能实现的 方式中, 所述将所述设备信息增添到用户设备列表具体为: 当确定第一用户设 备的业务量超过阔值时, 将所述第一用户设备的设备信息增添到用户设备列 表; 和 /或, 当确定第一用户设备的通信模式发生变化时, 将所述第一用户设 备的设备信息增添到用户设备列表; 和 /或, 在接收到第一用户设备发送的加 入用户设备列表确认消息或加入用户设备列表请求时,将所述第一用户设备的 设备信息增添到用户设备列表。
结合第一方面或第一方面的第一种可能实现的方式或第一方面的第二种 可能实现的方式, 在第三种可能实现的方式中, 所述向所述基站覆盖范围内的 第二用户设备发送所述用户设备列表具体为:向所述基站覆盖范围内的且所述 用户设备列表中包括的第二用户设备发送所述用户设备列表; 或者, 向所述基 站覆盖范围内的任意第二用户设备发送所述用户设备列表。
结合第一方面或第一方面的第一种可能实现的方式或第一方面的第二种 可能实现的方式, 在第四种可能实现的方式中,在所述向所述基站覆盖范围内 的第二用户设备发送所述用户设备列表之前, 所述方法还包括: 接收第二用户 设备发送的获取用户设备列表请求;所述向所述基站覆盖范围内的第二用户设 备发送所述用户设备列表具体为:向发送所述获取用户设备列表请求的第二用 户设备或包括发送所述获取用户设备列表请求的第二用户设备在内的一组第 二用户设备。
结合第一方面或第一方面的第一种可能实现的方式或第一方面的第二种 可能实现的方式, 在第五种可能实现的方式中, 所述向所述基站覆盖范围内的 第二用户设备发送所述用户设备列表具体为:通过广播信道或多播信道向所述 第二用户设备发送所述用户设备列表; 或,通过下行控制信道向所述第二用户 设备发送下行控制信息, 所述下行控制信息携带所述用户设备列表; 或, 通过 物理下行共享信道发送所述用户设备列表;通过下行控制信道向所述第二用户 设备发送下行控制信息,所述下行控制信息用于指示第二用户设备在所述物理 下行共享信道获取所述用户设备列表。
结合第一方面的第五种可能实现的方式, 在第六种可能实现的方式中, 所 述下行控制信道包括物理下行控制信道或增强物理下行控制信道;所述通过下
行控制信道向所述第二用户设备发送下行控制信息具体为:通过物理下行控制 信道或增强物理下行控制信道的公共或专用搜索空间向所述第二用户设备发 送下行控制信息。
结合第一方面的第一种可能实现的方式,在第七种可能实现的方式中, 所 述用户设备列表为多个用户设备列表时,根据第一用户设备的接入时间或第一 用户设备与所述基站之间的距离或第一用户设备所在区域对所述第一用户设 备进行分类, 每一类第一用户设备组成一个用户设备列表。
结合第一方面的第七种可能实现的方式,在第八种可能实现的方式中,在 所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表之前,所述 方法还包括:向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列 表的分类标识; 接收所述第二用户设备发送的获取用户设备列表请求, 所述获 取用户设备列表请求携带所述第二用户设备所需的用户设备列表对应的分类 标识;所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表具体 为:向所述基站覆盖范围内的第二用户设备发送所述获取用户设备列表请求携 带的分类标识对应的用户设备列表。
结合第一方面的第七种可能实现的方式,在第九种可能实现的方式中,在 所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表之前,所述 方法还包括:向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列 表的分类标识; 接收用户设备发送的用户设备列表请求, 所述用户设备列表请 求携带一个比特或多个比特, 所述多个比特对应所述分类标识; 所述向所述基 站覆盖范围内的第二用户设备发送所述用户设备列表具体为:当所述用户设备 列表请求携带一个比特时,基站根据所述一个比特确定是否向所述基站覆盖范 围内的第二用户设备发送所述多个用户设备列表中的默认用户设备列表,或者 根据所述一个比特所指示的状态发送向所述基站覆盖范围内的第二用户设备 发送所述多个用户设备列表中对应的用户设备列表;当所述用户设备列表请求 携带多个比特时,基站将所述多个比特对应的分类标识对应的用户设备列表发 送至所述基站覆盖范围内的第二用户设备。
在第二方面, 本发明提供一种用户设备发现方法, 该方法包括: 获取基站发送的用户设备列表,所述用户设备列表包括多个用户设备的设
备信息, 所述设备信息包括所述用户设备釆用点对点通信时的标识符; 根据所述用户设备列表发现用户设备。
在第二方面的第一种可能实现的方式中,所述用户设备列表为一个用户设 备列表或多个用户设备列表。
结合第二方面或第二方面的第一种可能实现的方式,在第二种可能实现的 方式中, 所述获取基站发送的用户设备列表具体为: 通过广播信道或多播信道 获取基站发送的所述用户设备列表; 或,通过下行控制信道获取基站发送的下 行控制信息, 所述下行控制信息携带有所述用户设备列表; 或, 通过下行控制 信道获取基站发送下行控制信息, 所述下行控制信息携带有指示标识; 根据所 述指示标识从物理下行共享信道获取基站发送的所述用户设备列表。
结合第二方面的第二种可能实现的方式,在第三种可能实现的方式中, 所 述下行控制信道包括物理下行控制信道或增强物理下行控制信道;所述通过下 行控制信道获取基站发送的下行控制信息具体为:通过物理下行控制信道或增 强物理下行控制信道的公共或专用搜索空间获取基站发送的下行控制信息。
结合第二方面的第一种可能实现的方式,在第四种可能实现的方式中, 所 述用户设备列表为多个用户设备列表时,在所述获取基站发送的用户设备列表 之前, 所述方法还包括: 接收基站发送的所述多个用户设备列表的分类标识; 向所述基站发送获取用户设备列表请求,所述获取用户设备列表请求携带所需 的用户设备列表的分类标识,用以基站向所述基站覆盖范围内的用户设备发送 所述分类标识对应的用户设备列表。
结合第二方面的第一种可能实现的方式,在第五种可能实现的方式中, 所 述用户设备列表为多个用户设备列表时,在所述获取基站发送的用户设备列表 之前, 所述方法还包括: 接收基站发送的所述多个用户设备列表的分类标识; 向所述基站发送获取用户设备列表请求,所述获取用户设备列表请求携带一个 比特或多个比特, 所述多个比特对应所述分类标识; 所述一个比特用于指示 基站是否向所述基站覆盖范围内的用户设备发送所述多个用户设备列表中的 默认用户设备列表,或者用于指示基站根据所述一个比特所指示的状态向所述 基站覆盖范围内的用户设备发送所述多个用户设备列表中对应的用户设备列 表;所述多个比特用于指示基站向所述基站覆盖范围内的用户设备发送所述多
个比特对应的分类标识对应的用户设备列表。
在第三方面, 本发明提供一种基站, 该基站包括:
获取单元, 用于获取第一用户设备的设备信息, 所述设备信息包括所述第 一用户设备釆用点对点通信时的标识符;
增添单元, 用于将所述设备信息增添到用户设备列表;
第一发送单元,用于向所述基站覆盖范围内的第二用户设备发送所述用户 设备列表,以使得所述第二用户设备根据所述用户设备列表发现所述第一用户 设备。
在第三方面的第一种可能实现的方式中,所述用户设备列表为一个用户设 备列表或多个用户设备列表。
结合第三方面或第三方面的第一种可能实现的方式,在第二种可能实现的 方式中, 所述增添单元具体用于: 当确定第一用户设备的业务量超过阔值时, 将所述第一用户设备的设备信息增添到用户设备列表; 和 /或, 当确定第一用 户设备的通信模式发生变化时,将所述第一用户设备的设备信息增添到用户设 备列表; 和 /或, 在接收到第一用户设备发送的加入用户设备列表确认消息或 加入用户设备列表请求时,将所述第一用户设备的设备信息增添到用户设备列 表。
结合第三方面或第三方面的第一种可能实现的方式或第三方面的第二种 可能实现的方式, 在第三种可能实现的方式中, 所述第一发送单元具体用于: 向所述基站覆盖范围内的且所述用户设备列表中包括的第二用户设备发送所 述用户设备列表; 或者, 向所述基站覆盖范围内的任意第二用户设备发送所述 用户设备列表
结合第三方面或第三方面的第一种可能实现的方式或第三方面的第二种 可能实现的方式, 在第四种可能实现的方式中, 述基站还包括: 接收单元, 用 于接收第二用户设备发送的获取用户设备列表请求;所述第一发送单元具体用 于向发送所述获取用户设备列表请求的第二用户设备或包括发送所述获取用 户设备列表请求的第二用户设备在内的一组第二用户设备。
结合第三方面或第三方面的第一种可能实现的方式或第三方面的第二种 可能实现的方式, 在第五种可能实现的方式中, 所述第一发送单元具体用于:
通过广播信道或多播信道向所述第二用户设备发送所述用户设备列表; 或,通 过下行控制信道向所述第二用户设备发送下行控制信息,所述下行控制信息携 带所述用户设备列表; 或, 通过物理下行共享信道发送所述用户设备列表; 通 过下行控制信道向所述第二用户设备发送下行控制信息,所述下行控制信息用 于指示第二用户设备在所述物理下行共享信道获取所述用户设备列表。
结合第三方面的第五种可能实现的方式,在第六种可能实现的方式中, 所 述下行控制信道包括物理下行控制信道或增强物理下行控制信道;所述通过下 行控制信道向所述第二用户设备发送下行控制信息具体为:通过物理下行控制 信道或增强物理下行控制信道的公共或专用搜索空间向所述第二用户设备发 送下行控制信息。
结合第三方面的第一种可能实现的方式,在第七种可能实现的方式中, 所 述用户设备列表为多个用户设备列表时,根据第一用户设备的接入时间或第一 用户设备与所述基站之间的距离或第一用户设备所在区域对所述第一用户设 备进行分类, 每一类第一用户设备组成一个用户设备列表。
结合第三方面的第七种可能实现的方式,在第八种可能实现的方式中, 所 述基站还包括: 第二发送单元,用于向所述基站覆盖范围内的第二用户设备发 送所述多个用户设备列表的分类标识; 接收单元, 用于接收所述第二用户设备 发送的获取用户设备列表请求,所述获取用户设备列表请求携带所述第二用户 设备所需的用户设备列表对应的分类标识; 所述第一发送单元具体用于: 向所 述基站覆盖范围内的第二用户设备发送所述获取用户设备列表请求携带的分 类标识对应的用户设备列表。
结合第三方面的第七种可能实现的方式,在第九种可能实现的方式中, 所 述基站还包括: 第二发送单元,用于向所述基站覆盖范围内的第二用户设备发 送所述多个用户设备列表的分类标识; 接收单元, 用于接收用户设备发送的用 户设备列表请求, 所述用户设备列表请求携带一个比特或多个比特, 所述多个 比特对应所述分类标识; 所述第一发送单元具体用于: 当所述用户设备列表请 求携带一个比特时,基站根据所述一个比特确定是否向所述基站覆盖范围内的 第二用户设备发送所述多个用户设备列表中的默认用户设备列表,或者根据所 述一个比特所指示的状态发送向所述基站覆盖范围内的第二用户设备发送所
述多个用户设备列表中对应的用户设备列表;当所述用户设备列表请求携带多 个比特时,基站将所述多个比特对应的分类标识对应的用户设备列表发送至所 述基站覆盖范围内的第二用户设备。
在第四方面, 本发明提供一种用户设备, 该用户设备包括:
获取单元, 用于获取基站发送的用户设备列表, 所述用户设备列表包括多 个用户设备的设备信息,所述设备信息包括所述用户设备釆用点对点通信时的 标识符;
发现单元, 用于根据所述用户设备列表发现用户设备。
在第四方面的第一种可能实现的方式中,所述用户设备列表为一个用户设 备列表或多个用户设备列表。
结合第四方面或第四方面的第一种可能实现的方式,在第二种可能实现的 方式中, 所述获取单元具体用于: 通过广播信道或多播信道获取基站发送的所 述用户设备列表; 或, 通过下行控制信道获取基站发送的下行控制信息, 所述 下行控制信息携带有所述用户设备列表; 或,通过下行控制信道获取基站发送 下行控制信息, 所述下行控制信息携带有指示标识; 根据所述指示标识从物理 下行共享信道获取基站发送的所述用户设备列表。
结合第四方面的第二种可能实现的方式,在第三种可能实现的方式中, 所 述下行控制信道包括物理下行控制信道或增强物理下行控制信道;所述通过下 行控制信道获取基站发送的下行控制信息具体为:通过物理下行控制信道或增 强物理下行控制信道的公共或专用搜索空间获取基站发送的下行控制信息。
结合第四方面的第一种可能实现的方式,在第四种可能实现的方式中, 所 述用户设备还包括: 接收单元,用于在所述用户设备列表为多个用户设备列表 时, 接收基站发送的所述多个用户设备列表的分类标识; 第二发送单元, 用于 向所述基站发送用户设备列表请求,所述用户设备列表请求携带所需的用户设 备列表的分类标识,用以基站向所述基站覆盖范围内的用户设备发送所述分类 标识对应的用户设备列表。
结合第四方面的第一种可能实现的方式,在第五种可能实现的方式中, 所 述用户设备还包括: 接收单元,用于在所述用户设备列表为多个用户设备列表 时, 接收基站发送的所述多个用户设备列表的分类标识; 第二发送单元, 用于
向所述基站发送获取用户设备列表请求,所述获取用户设备列表请求携带一个 比特或多个比特, 所述多个比特对应所述分类标识; 所述一个比特用于指示 基站是否向所述基站覆盖范围内的用户设备发送所述多个用户设备列表中的 默认用户设备列表,或者用于指示基站根据所述一个比特所指示的状态向所述 基站覆盖范围内的用户设备发送所述多个用户设备列表中对应的用户设备列 表;所述多个比特用于指示基站向所述基站覆盖范围内的用户设备发送所述多 个比特对应的分类标识对应的用户设备列表。
通过利用本发明提供的设备发现方法、基站及用户设备,基站将获取到的 设备信息增添至用户设备列表中,然后将用户设备列表发送其覆盖范围内的用 户设备,从而使得用户设备根据基站发送的用户设备列表发现能与其进行 D2D 通信的用户设备。 附图说明
图 1为本发明实施例一提供的一种设备发现方法的流程图;
图 2为本发明实施例二提供的一种设备发现方法的流程图;
图 3为本发明实施例三提供的一种设备发现方法的流程图;
图 4为本发明实施例四提供的一种设备发现方法的流程图;
图 5为本发明实施例五提供的一种基站的结构示意图;
图 6为本发明实施例六提供的一种基站的结构示意图;
图 7为本发明实施例七提供的一种基站的结构示意图;
图 8为本发明实施例八提供的一种用户设备的结构示意图;
图 9为本发明实施例九提供的一种用户设备的结构示意图;
图 10为本发明实施例十提供的一种用户设备的结构示意图。 具体实施方式
为了使本发明的目的、技术方案和优点更加清楚, 下面将结合附图对本发 明作进一步地详细描述, 显然, 所描述的实施例仅仅是本发明一部份实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没有做 出创造性劳动前提下所获得的所有其它实施例, 都属于本发明保护的范围。
下面以图 1为例详细说明本发明实施例一提供的一种设备发现方法, 图 1 为本发明实施例一提供的一种设备发现方法的流程图。该设备发现方法的执行 主体为基站。 如图 1所示, 该设备发现方法包括以下步骤:
步骤 S101, 获取第一用户设备的设备信息。
其中, 该第一用户设备可具体为具有 D2D通信功能的用户设备。设备信息 可包括: 第一用户设备的 D2D通信能力, 第一用户设备的 D2D 标识符 ( Identification, ID )等。
可选地, 基站通过接收第一用户设备发送的设备信息以获取设备信息。 具体的, 第一用户设备可由事件触发向基站发送设备信息。 例如, 当基站 覆盖范围内的第一用户设备开机时,或当第一用户设备从其它小区切换或随机 接入到该基站时, 或基站覆盖范围内的第一用户设备点对点的业务量较大时, 该第一用户设备向基站发送设备信息。 另外, 第一用户设备也可主动向基站发 送设备信息。 例如, 基站覆盖范围内的第一用户设备在开机后, 用户在没选择 使用 D2D功能时, 第一用户设备不需要向基站发送设备信息, 当用户选择使用 D2D功能时, 再向基站发送设备信息。 或者基站覆盖范围内的第一用户设备在 开机或使用 D2D功能后,询问用户是否将该第一用户设备加入基站的用户设备 列表中, 当用户同意加入时, 向基站发送该第一用户设备的设备信息。 或者基 站覆盖范围内的第一用户设备向基站发送加入用户设备列表的请求,当获得基 站同意后向基站发送该第一用户设备的设备信息。
可选地,基站接收邻区基站发送的用户设备列表,从邻区基站发送的用户 设备列表中获取设备信息。
因为第一用户设备可以在多个小区之间切换,为使基站可第一时间获取从 邻区切入其所在基站覆盖范围内的第一用户设备的设备信息,基站可通过接收 邻区基站的用户设备列表,以获取目前在邻区基站覆盖范围内的第一用户设备 的设备信息。
步骤 S102, 将获取到的设备信息增添到用户设备列表。
具体的,基站可在获取到设备信息后直接将设备信息添加至用户设备列表 中; 也可以将获取到的设备信息进行緩存, 当基站确定其获取到的设备信息对 应的第一用户设备的业务量超过阔值和 /或通信模式发生变化和 /或接收到对应
的第一用户设备发送的加入用户设备列表确认消息或加入用户设备列表请求 时, 再将该第一用户设备的设备信息增添到用户设备列表中。
步骤 S103, 向基站覆盖范围内的第二用户设备发送用户设备列表,用以第 二用户设备根据用户设备列表发现第一用户设备。
其中, 该第二用户设备可具体为具有 D2D通信功能的用户设备。
具体的,向基站覆盖范围内的任意第二用户设备发送用户设备列表。或者, 向基站覆盖范围内的且用户设备列表中包括的第二用户设备发送用户设备列 表。 或者, 基站在发送用户设备列表之前, 会接收到第二用户设备发送的获取 用户设备列表请求,然后仅向发送获取用户设备列表请求的第二用户设备发送 用户设备列表,或者在接收到第二用户设备发送的获取用户设备列表请求之后 向包括发送获取用户设备列表请求的第二用户设备在内的一组第二用户设备 或基站覆盖范围内的任意第二用户设备发送用户设备列表。
可选地,基站在向其覆盖范围内第二用户设备发送用户设备列表时,通过 广播信道或多播信道进行发送;在向其覆盖范围内一个或多个第二用户设备发 送用户设备列表时, 可通过多播信道进行发送, 第二用户设备从广播信道或多 播信道获取用户设备列表,从而根据该用户设备列表发现可进行 D2D通信的第 一用户设备。
可选地,基站在向其覆盖范围内第二用户设备发送用户设备列表时,通过 物理下行控制信道或增强物理下行控制信道的公共搜索空间或专用搜索空间 向第二用户设备发送下行控制信息, 该下行控制信息携带有用户设备列表。该 基站覆盖范围内的所有第二用户设备都可以从物理下行控制信道或增强物理 下行控制信道的公共搜索空间或该基站覆盖范围内的特定第二用户设备可以 从物理下行控制信道或增强物理下行控制信道的专用搜索空间获取到下行控 制信息携带的用户设备列表,从而根据该用户设备列表发现可进行 D2D通信的 第一用户设备。
可选地,基站在向其覆盖范围内第二用户设备发送用户设备列表时,通过 下行物理共享信道发送用户设备列表,并且通过物理下行控制信道或增强物理 下行控制信道的公共搜索空间或专用搜索空间向用户设备发送下行控制信息, 该下行控制信息携带有指示标识,该指示标识用于指示第二用户设备在物理下
行共享信道获取用户设备列表。该基站覆盖范围内的所有第二用户设备都可以 从物理下行控制信道或增强物理下行控制信道的公共搜索空间或该基站覆盖 范围内的特定第二用户设备可以从物理下行控制信道或增强物理下行控制信 道的专用搜索空间获取到下行控制信息,然后根据该下行控制信息携带的指示 标识从物理下行共享信道获取基站发送的用户设备列表,从而根据该用户设备 列表发现可进行 D2D通信的第一用户设备。
利用本发明实施例一提供的设备发现方法,基站将获取到的包括用户设备 D2D ID的设备信息增添至用户设备列表中, 然后将用户设备列表发送其覆盖 范围内的用户设备,从而使得用户设备根据基站发送的用户设备列表发现能与 其进行 D2D通信的用户设备。
下面以图 2为例详细说明本发明实施例二提供的一种设备发现方法, 图 2 为本发明实施例二提供的一种设备发现方法的流程图。该设备发现方法的执行 主体为基站。 如图 2所示, 该设备发现方法包括以下步骤:
步骤 S201, 获取第一用户设备的设备信息。
其中, 该第一用户设备可具体为具有 D2D通信功能的用户设备。设备信息 可包括: 第一用户设备的 D2D通信能力, 第一用户设备的 D2D ID等。
可选地, 基站通过接收第一用户设备发送的设备信息以获取设备信息。 具体的, 第一用户设备可由事件触发向基站发送设备信息。 例如, 当基站 覆盖范围内的第一用户设备开机时,或当第一用户设备从其它小区切换或随机 接入到该基站时, 或基站覆盖范围内的第一用户设备点对点的业务量较大时, 该第一用户设备向基站发送设备信息。 另外, 第一用户设备也可主动向基站发 送设备信息。 例如, 基站覆盖范围内的第一用户设备在开机后, 用户在没选择 使用 D2D功能时, 第一用户设备不需要向基站发送设备信息, 当用户选择使用 D2D功能时, 再向基站发送设备信息。 或者基站覆盖范围内的第一用户设备在 开机或使用 D2D功能后,询问用户是否将该第一用户设备加入基站的用户设备 列表中, 当用户同意加入时, 向基站发送该第一用户设备的设备信息。 或者基 站覆盖范围内的第一用户设备向基站发送加入用户设备列表的请求,当获得基 站同意后向基站发送该第一用户设备的设备信息。
可选地,基站接收邻区基站发送的用户设备列表,从邻区基站发送的用户
设备列表中获取设备信息。
因为第一用户设备可以在多个小区之间切换,为使基站可第一时间获取从 邻区切入其所在基站覆盖范围内的第一用户设备的设备信息,基站可通过接收 邻区基站的用户设备列表,以获取目前在邻区基站覆盖范围内的第一用户设备 的设备信息。
步骤 S202, 将获取到的设备信息增添到用户设备列表。
具体的,基站可在获取到设备信息后直接将设备信息添加至用户设备列表 中; 也可以将获取到的设备信息进行緩存, 当基站确定其获取到的设备信息对 应的第一用户设备的业务量超过阔值和 /或通信模式发生变化和 /或接收到对应 的第一用户设备发送的加入用户设备列表确认消息或加入用户设备列表请求 时, 再将该第一用户设备的设备信息增添到用户设备列表中。
该用户设备列表为一个用户设备列表或多个用户设备列表。
当该用户设备列表为多个时,每个用户设备列表具有分类标识。 多个用户 设备列表的分类方式不限。例如, 将本小区内的第一用户设备的设备信息分为 一个用户设备列表,将各个邻区内的第一用户设备的设备信息分别分为一个用 户设备列表; 或者, 按照加入到用户设备列表的时间进行分类, 如将 10分钟内 加入到用户设备列表的第一用户设备的设备信息作为用户设备列表 1,将 10-30 分钟内加入到用户设备列表的第一用户设备的设备信息作为用户设备列表 2, 将 30分钟以上加入到用户设备列表的的第一用户设备的设备信息作为用户设 备列表 3; 或者按照第一用户设备与基站之间的距离进行分类, 如将距离基站 100米的第一用户设备的设备信息作为用户设备列表 1,将距离基站 5000米的第 一用户设备的设备信息作为用户设备列表 2, 将距离基站 5000米以上的第一用 户设备的设备信息作为用户设备列表 3。 或者将基站所覆盖的区域分成多个子 区域, 每个子区域内的第一用户设备的设备信息作为一个用户设备列表。
步骤 S203,向基站覆盖范围内的第二用户设备发送用户设备列表的分类标 识。
其中, 该第二用户设备可具体为具有 D2D通信功能的用户设备。
为使基站覆盖范围内的第二用户设备获知多个用户设备列表的分类,基站 需向第二用户设备发送用户设备列表的分类标识,以便于第二用户设备根据分
类向基站请求相应的用户设备列表。
步骤 S204, 接收第二用户设备发送的获取用户设备列表请求。
可选地,该获取用户设备列表请求携带第二用户设备所需的用户设备列表 对应的分类标识, 以使基站根据接收到的分类标识, 向基站覆盖范围内的第二 用户设备发送相应的用户设备列表。
可选地, 该用户设备列表请求携带一个比特或多个比特。一个比特用于指 示基站是否向基站覆盖范围内的用户设备发送多个用户设备列表中的默认用 户设备列表,或者用于指示基站根据一个比特所指示的状态向基站覆盖范围内 的第二用户设备发送多个用户设备列表中对应的用户设备列表,其中默认用户 设备列表可以是一个、 多个或所有用户设备列表。 多个比特对应分类标识, 用 于指示基站根据该多个比特对应的分类标识确定向第二用户设备发送的用户 设备列表。 例如, 基站内有 8个用户设备列表, 那么该多个比特为 3个比特, 其 中 000对应用户设备列表 1的分类标识, 001对应用户设备列表 2的分类标识,010 对应用户设备列表的分类标识, 以此类推。
步骤 S205, 向基站覆盖范围内的第二用户设备发送用户设备列表。
基站在接收到第二用户设备发送的第二用户设备列表请求之后,仅向发送 获取用户设备列表请求的第二用户设备或包括发送获取用户设备列表请求的 第二用户设备在内的一组第二用户设备或基站覆盖范围内的任意第二用户设 备发送用户设备列表。
可选地, 当获取用户设备列表请求携带有分类标识时,基站根据接收到的 分类标识,向基站覆盖范围内的第二用户设备发送该分类标识对应的用户设备 列表。
可选地, 当获取用户设备列表请求携带一个比特时, 如果该一个比特为 0 (或 1 ), 则基站不向基站覆盖范围内的第二用户设备发送任何用户设备列表; 如果该一个比特为 1 (或 0 ), 则基站向基站覆盖范围内的第二用户设备发送多 个用户设备列表中的默认用户设备列表。
或者, 当获取用户设备列表请求携带一个比特时,如果该一个比特为 0 (或 1 ),则基站向基站覆盖范围内的第二用户设备发送多个用户列表中的第一默认 用户设备列表; 如果该一个比特为 1 (或 0 ), 则基站向基站覆盖范围内的第二
用户设备发送多个用户设备列表中的第二默认用户设备列表。
可选地, 当获取用户设备列表请求携带多个比特时,基站首先根据该多个 比特对应的分类标识确定将要发送的用户设备列表,然后向基站覆盖范围内的 第二用户设备发送上述确定的用户设备列表。
基站向第二用户设备发送用户设备列表的方式与实施例一中基站向第二 用户设备发送用户设备列表的方式相同, 在此不再赘述。
利用本发明实施例二提供的设备发现方法,基站将获取到的包括用户设备 D2D ID的设备信息增添至用户设备列表中, 该用户设备列表为多个用户设备 列表, 然后向用户设备发送用户设备列表的分类标识, 以使用户设备可根据自 身需求向基站请求相应的用户设备列表。基站根据用户设备列表请求向其覆盖 范围内的用户设备发送所需的用户设备列表,从而使得用户设备根据基站发送 的用户设备列表发现能与其进行 D2D通信的用户设备。
下面以图 3为例详细说明本发明实施三提供的一种设备发现方法,图 3为本 发明实施例三提供的一种设备发现方法的流程图。该设备发现方法的执行主体 为用户设备, 该用户设备可进一步为具有 D2D通信功能的用户设备。 如图 3所 示, 该设备发现方法包括以下步骤:
步骤 S301, 获取用户设备列表。
该用户设备列表包括设备信息, 该设备信息可包括: 用户设备的 D2D通信 能力, 用户设备的 D2D 标识符等。
该用户设备列表由基站发送,基站首先获取用户设备的设备信息, 然后将 设备信息增添到用户设备列表中。基站可通过接收邻区基站的用户设备列表获 取设备信息, 也可接收用户设备发送的设备信息。
因此, 步骤 S301之前, 该方法还包括:向基站发送设备信息。
具体的, 用户设备可由事件触发向基站发送设备信息。 例如, 当基站覆盖 范围内的用户设备开机时, 当用户设备从其它小区切换或随机接入到该基站 时, 或基站覆盖范围内的用户设备点对点的业务量较大时, 该用户设备会向基 站发送设备信息。 另外, 用户设备也可主动向基站发送设备信息。 例如, 基站 覆盖范围内的用户设备在开机后, 用户在没选择使用 D2D功能时, 用户设备不 需要向基站发送设备信息, 当用户选择使用 D2D功能时, 再向基站发送设备信
息。 或者基站覆盖范围内的用户设备在开机或使用 D2D功能后, 询问用户是否 将该用户设备加入基站的用户设备列表中, 当用户同意加入时, 向基站发送该 用户设备的设备信息。或者基站覆盖范围内的用户设备向基站发送加入基站的 用户设备列表的请求, 当获得基站同意后向基站发送该用户设备的设备信息。
另外, 在步骤 S301之前, 该方法还可以包括: 向基站发送加入用户设备列 表确认消息或加入用户设备列表请求,以使得基站在接收到该加入用户设备列 表确认消息或加入用户设备列表请求时,将接收到的设备信息增添到用户设备 列表中。
用户设备可直接获取基站发送的用户设备列表。或者,在获取用户设备列 表之前, 用户设备可向基站发送获取用户设备列表请求, 以使基站在接收到该 获取用户设备列表后, 向其覆盖范围内的用户设备发送用户设备列表。
可选地, 用户设备通过广播信道或多播信道获取基站发送的用户设备列 表。
可选地,用户设备通过物理下行控制信道或增强物理下行控制信道的公共 搜索空间或专用搜索空间获取基站发送的下行控制信息,该下行控制信息携带 有用户设备列表。
可选地,用户设备通过物理下行控制信道或增强物理下行控制信道的公共 搜索空间或专用搜索空间获取下行控制信息, 该下行控制信息携带有指示标 识,然后用户设备根据该指示标识从物理下行共享信道获取基站发送的用户设 备列表。
步骤 S302, 根据获取到的用户设备列表发现用户设备。
用户设备根据获取到的用户设备列表发现能与其进行 D2D通信的用户设 备。
利用本发明实施例三提供的设备发现方法,用户设备获取到包括设备信息 的用户设备列表后, 由于该设备信息包括用户设备 D2D ID, 因此用户设备根 据该用户设备列表发现能与其进行 D2D通信的用户设备。
下面以图 4为例详细说明本发明实施四提供的一种设备发现方法,图 4为本 发明实施例四提供的一种设备发现方法的流程图。该设备发现方法的执行主体 为用户设备, 该用户设备可进一步为具有 D2D通信功能的用户设备。 如图 4所
示, 该设备发现方法包括以下步骤:
步骤 S401, 接收基站发送的用户设备列表的分类标识。
用户设备列表包括设备信息, 该设备信息可包括: 用户设备的 D2D通信能 力, 用户设备的 D2D 标识符等。
用户设备列表为多个用户设备列表,每个用户设备列表具有分类标识。 多 个用户设备列表的分类方式不限。例如,将本小区内的用户设备的设备信息分 为一个用户设备列表,将各个邻区内的用户设备的设备信息分别分为一个用户 设备列表; 或者, 按照加入到用户设备列表的时间进行分类; 或者按照用户设 备与基站之间的距离进行分类; 或者将基站所覆盖的区域分成多个子区域,每 个子区域内的用户设备对应的设备信息作为一个用户设备列表。
另夕卜,基站可通过接收邻区基站的用户设备列表获取设备信息, 也可接收 用户设备发送的设备信息。
因此, 该方法还包括: 用户设备向基站发送设备信息。
具体的, 用户设备可由事件触发向基站发送设备信息。 例如, 当基站覆盖 范围内的用户设备开机时, 当用户设备从其它小区切换或随机接入到该基站 时, 或基站覆盖范围内的用户设备点对点的业务量较大时, 该用户设备会向基 站发送设备信息。 另外, 用户设备也可主动向基站发送设备信息。 例如, 基站 覆盖范围内的用户设备在开机后, 用户在没选择使用 D2D功能时, 用户设备不 需要向基站发送设备信息, 当用户选择使用 D2D功能时, 再向基站发送设备信 息。 或者基站覆盖范围内的用户设备在开机或使用 D2D功能后, 询问用户是否 将该用户设备加入基站的用户设备列表中, 当用户同意加入时, 向基站发送该 用户设备的设备信息。或者基站覆盖范围内的用户设备向基站发送加入用户设 备列表的请求, 当获得基站同意后向基站发送该用户设备的设备信息。
另外, 该方法还可以包括: 向基站发送加入用户设备列表确认消息或加入 用户设备列表请求,以使得基站在接收到该加入用户设备列表确认消息或加入 用户设备列表请求时, 将接收到的设备信息增添到用户设备列表中。
步骤 S402, 向基站发送获取用户设备列表请求。
可选地,该获取用户设备列表请求携带用户设备所需的用户设备列表对应 的分类标识, 以使基站根据接收到的分类标识, 向基站覆盖范围内的用户设备
发送相应的用户设备列表。
可选地, 该获取用户设备列表请求携带一个比特或多个比特。一个比特用 于指示基站是否向基站覆盖范围内的用户设备发送多个用户设备列表中的默 认用户设备列表,或者用于指示基站根据一个比特所指示的状态向基站覆盖范 围内的用户设备发送多个用户设备列表中对应的用户设备列表,其中默认用户 设备列表可以是一个、多个或所有用户设备列表。例如, 当该一个比特为 0 (或 1 ) 时, 指示基站不向基站覆盖范围内的用户设备发送任何用户设备列表; 当 该一个比特为 1 (或 0 ), 指示基站向基站覆盖范围内的用户设备发送多个用户 设备列表中的默认用户设备列表。 或者, 当用户设备列表请求为一个比特时, 如果该一个比特为 0 (或 1 ), 则基站向基站覆盖范围内的用户设备发送第一默 认用户设备列表; 如果该一个比特为 1 (或 0 ), 则指示基站向指示基站覆盖范 围内的用户设备发送第二默认用户设备列表。 多个比特对应分类标识, 用于指 示基站根据该多个比特对应的分类标识确定向用户设备发送的用户设备列表。 例如, 基站内有 8个用户设备列表, 那么该多个比特为 3个比特, 其中 000对应 用户设备列表 1的分类标识, 001对应用户设备列表 2的分类标识, 010对应用户 设备列表 3的分类标识, 以此类推。
步骤 S403, 获取基站发送的用户设备列表。
用户设备获取用户设备列表的方式与实施例三中用户设备获取用户设备 列表的过程相同, 在此不再赘述。
步骤 S404, 根据获取的用户设备列表发现用户设备。
用户设备根据获取到的用户设备列表发现能与其进行 D2D通信的用户设 备。
利用本发明实施例四提供的设备发现方法,基站中的用户设备列表为一个 或多个用户设备列表, 用户设备接收基站发送的用户设备列表的分类标识, 然 后根据自身需求向基站请求相应的用户设备列表,接收基站根据用户设备列表 请求向发送的用户设备列表,由于用户设备列表中的设备信息包括用户设备的 D2D ID, 因此用户设备可根据基站发送的用户设备列表发现能与其进行 D2D 通信的用户设备。
下面以图 5为例详细说明本发明实施例五提供的一种基站,图 5为本发明实
施例五提供的一种基站的结构示意图。该基站用以实现本发明实施例一提供的 设备发现方法。 如图 5所示, 该基站包括: 获取单元 510, 增添单元 520及第一 发送单元 530。
获取单元 510用于获取第一用户设备的设备信息, 该设备信息包括第一用 户设备的 D2D通信能力, 第一用户设备的 D2D ID等。
可选地, 获取单元 510具体用于通过接收第一用户设备发送的设备信息以 获取设备信息。
具体的, 第一用户设备可由事件触发向基站发送设备信息。 例如, 当基站 覆盖范围内的第一用户设备开机时,或当第一用户设备从其它小区切换或随机 接入到该基站时, 或基站覆盖范围内的第一用户设备点对点的业务量较大时, 该第一用户设备向基站发送设备信息。 另外, 第一用户设备也可主动向基站发 送设备信息。 例如, 基站覆盖范围内的第一用户设备在开机后, 用户在没选择 使用 D2D功能时, 第一用户设备不需要向基站发送设备信息, 当用户选择使用 D2D功能时, 再向基站发送设备信息。 或者基站覆盖范围内的第一用户设备在 开机或使用 D2D功能后,询问用户是否将该第一用户设备加入基站的用户设备 列表中, 当用户同意加入时, 向基站发送该第一用户设备的设备信息。 或者基 站覆盖范围内的第一用户设备向基站发送加入用户设备列表的请求,当获得基 站同意后向基站发送该第一用户设备的设备信息。
可选地, 获取单元 510具体用于接收邻区基站发送的用户设备列表, 从邻 区基站发送的用户设备列表中获取设备信息。
因为第一用户设备可以在多个小区之间切换,为使基站可第一时间获取从 邻区切入其所在基站覆盖范围内的第一用户设备的设备信息,基站可通过接收 邻区基站的用户设备列表,以获取目前在邻区基站覆盖范围内的第一用户设备 的设备信息。
增添单元 520用于将获取到的设备信息增添到用户设备列表。
具体的,在获取单元 510获取到设备信息后,增添单元 520可直接将设备信 息添加至用户设备列表中; 也可以将获取到的设备信息进行緩存, 当基站确定 其获取到的设备信息对应的第一用户设备的业务量超过阔值和 /或通信模式发 生变化和 /或接收到对应的第一用户设备发送的加入用户设备列表确认消息或
加入用户设备列表请求时,再将第一用户设备的设备信息增添到用户设备列表 中。
第一发送单元 530, 用于向基站覆盖范围内的第二用户设备发送用户设备 列表, 用以第二用户设备根据用户设备列表发现第一用户设备。
其中, 该第二用户设备可具体为具有 D2D通信功能的用户设备。
具体的, 第一发送单元 530向基站覆盖范围内的任意第二用户设备发送用 户设备列表。 或者, 第一发送单元 530向基站覆盖范围内的且用户设备列表中 包括的第二用户设备发送用户设备列表。 或者, 该基站还可以包括接收单元 540, 第一发送单元 530基站在发送用户设备列表之前, 接收单元 540会接收到 第二用户设备发送的获取用户设备列表请求, 然后第一发送单元 530仅向发送 获取用户设备列表请求的第二用户设备发送用户设备列表, 或者在接收单元 540接收到第二用户设备发送的获取用户设备列表请求之后, 向包括发送获取 用户设备列表请求的第二用户设备在内的一组第二用户设备或基站覆盖范围 内的任意第二用户设备发送用户设备列表。
可选地, 第一发送单元 530在向其覆盖范围内第二用户设备发送用户设备 列表时,通过广播信道或多播信道进行发送; 在向其覆盖范围内一个或多个第 二用户设备发送用户设备列表时, 可通过多播信道进行发送, 第二用户设备从 广播信道或多播信道获取用户设备列表,从而根据该用户设备列表发现可进行 D2D通信的第一用户设备。
可选地, 第一发送单元 530在向其覆盖范围内第二用户设备发送用户设备 列表时,通过物理下行控制信道或增强物理下行控制信道的公共搜索空间或专 用搜索空间向第二用户设备发送下行控制信息,该下行控制信息携带有用户设 备列表。该基站覆盖范围内的所有第二用户设备都可以从物理下行控制信道或 增强物理下行控制信道的公共搜索空间或该基站覆盖范围内的特定第二用户 设备可以从物理下行控制信道或增强物理下行控制信道的专用搜索空间获取 到下行控制信息携带的用户设备列表, 从而根据该用户设备列表发现可进行 D2D通信的第一用户设备。
可选地, 第一发送单元 530在向其覆盖范围内第二用户设备发送用户设备 列表时,通过下行物理共享信道发送用户设备列表, 并且通过物理下行控制信
道或增强物理下行控制信道的公共搜索空间或专用搜索空间向用户设备发送 下行控制信息, 该下行控制信息携带有指示标识, 该指示标识用于指示第二用 户设备在物理下行共享信道获取用户设备列表。该基站覆盖范围内的所有第二 用户设备都可以从物理下行控制信道或增强物理下行控制信道的公共搜索空 间或该基站覆盖范围内的特定第二用户设备可以从物理下行控制信道或增强 物理下行控制信道的专用搜索空间获取到下行控制信息,然后根据该下行控制 信息携带的指示标识从物理下行共享信道获取基站发送的用户设备列表,从而 根据该用户设备列表发现可进行 D2D通信的第一用户设备。
利用本发明实施例五提供的基站, 基站将获取到的包括用户设备 D2D ID 的设备信息增添至用户设备列表中,然后将用户设备列表发送其覆盖范围内的 用户设备, 从而使得用户设备根据基站发送的用户设备列表发现能与其进行 D2D通信的用户设备。
需要说明的是, 上述基站是用来实现实施例一所述的设备发现方法, 所包 括的各个单元只是按照功能逻辑进行划分的,但并不局限于上述的划分, 只要 能够实现相应的功能即可; 另外, 各功能单元的具体名称也只是为了便于相互 区分, 并不用于限制本发明的保护范围。
下面以图 6为例详细说明本发明实施例六提供的一种基站,图 6为本发明实 施例六提供的一种基站的结构示意图。该基站用以实现本发明实施例二提供的 设备发现方法。 如图 6所示, 该基站包括: 获取单元 610, 增添单元 620, 第二 发送单元 630, 接收单元 640及第一发送单元 650。
获取单元 610用于获取第一用户设备的设备信息。
其中, 该第一用户设备可具体为具有 D2D通信功能的用户设备。设备信息 可包括: 用户设备的 D2D通信能力, 用户设备的 D2D ID等。
可选地, 获取单元 610具体用于通过接收第一用户设备发送的设备信息以 获取设备信息。
具体的, 第一用户设备可由事件触发向基站发送设备信息。 另外, 第一用 户设备也可主动向基站发送设备信息。
可选地, 获取单元 610具体用于接收邻区基站发送的用户设备列表, 从邻 区基站发送的用户设备列表中获取设备信息。
增添单元 620用于将获取到的设备信息增添到用户设备列表。
具体的,在获取单元 610获取到设备信息后,增添单元 620直接将设备信息 添加至用户设备列表中; 也可以将获取到的设备信息进行緩存, 当基站确定其 获取到的设备信息对应的第一用户设备的业务量超过阔值和 /或通信模式发生 变化和 /或收到对应的第一用户设备发送的加入用户设备列表确认消息或加入 用户设备列表请求时, 在将该第一用户设备的设备信息增添到用户设备列表 中。
该用户设备列表为一个用户设备列表或多个用户设备列表。
当该用户设备列表为多个时,每个用户设备列表具有分类标识。 多个用户 设备列表的分类方式不限。例如, 将本小区内的第一用户设备的设备信息分为 一个用户设备列表,将各个邻区内的第一用户设备的设备信息分别分为一个用 户设备列表; 或者, 按照加入到用户设备列表的时间进行分类, 如将 10分钟内 加入到用户设备列表的第一用户设备的设备信息作为用户设备列表 1,将 10-30 分钟内加入到用户设备列表的第一用户设备的设备信息作为用户设备列表 2, 将 30分钟以上加入到用户设备列表的的第一用户设备的设备信息作为用户设 备列表 3; 或者按照第一用户设备与基站之间的距离进行分类, 如将距离基站 100米的第一用户设备的设备信息作为用户设备列表 1,将距离基站 5000米的第 一用户设备的设备信息作为用户设备列表 2, 将距离基站 5000米以上的第一用 户设备的设备信息作为用户设备列表 3。 或者将基站所覆盖的区域分成多个子 区域, 每个子区域内的第一用户设备的设备信息作为一个用户设备列表。
第二发送单元 630用于向基站覆盖范围内的第二用户设备发送用户设备列 表的分类标识。
为使基站覆盖范围内的第二用户设备获知多个用户设备列表的分类,第二 发送单元 630需向第二用户设备发送用户设备列表的分类标识, 以便于第二用 户设备根据分类向基站请求相应的用户设备列表。
接收单元 640用于接收第二用户设备发送的获取用户设备列表请求。
可选地,该获取用户设备列表请求携带第二用户设备所需的用户设备列表 对应的分类标识, 以使基站根据接收到的分类标识, 向基站覆盖范围内的第二 用户设备发送相应的用户设备列表。
可选地, 该获取用户设备列表请求携带一个比特或多个比特。一个比特用 于指示基站是否向基站覆盖范围内的用户设备发送多个用户设备列表中的默 认用户设备列表,或者用于指示基站根据一个比特所指示的状态向基站覆盖范 围内的第二用户设备发送多个用户设备列表中对应的用户设备列表,其中默认 用户设备列表可以是一个、多个或所有用户设备列表。多个比特对应分类标识, 用于指示基站根据该多个比特对应的分类标识确定向第二用户设备发送的用 户设备列表。 例如, 基站内有 8个用户设备列表, 那么该多个比特为 3个比特, 其中 000对应用户设备列表 1的分类标识, 001对应用户设备列表 2的分类标识, 010对应用户设备列表的分类标识, 以此类推。
第一发送单元 650用于向基站覆盖范围内的第二用户设备发送用户设备列 表。
具体的, 第一发送单元 650仅向发送获取用户设备列表请求的第二用户设 备或包括发送获取用户设备列表请求的第二用户设备在内的一组第二用户设 备或基站覆盖范围内的任意第二用户设备发送用户设备列表。
可选地, 当用户设备列表请求携带有分类标识时, 第一发送单元 650根据 接收到的分类标识,向基站覆盖范围内的第二用户设备发送该分类标识对应的 用户设备列表。
可选地, 当用户设备列表请求为一个比特时, 如果该一个比特为 0 (或 1 ), 则第一发送单元 650不向基站覆盖范围内的第二用户设备发送任何用户设备列 表; 如果该一个比特为 1 (或 0 ), 则第一发送单元 630向基站覆盖范围内的第二 用户设备发送多个用户设备列表中的默认用户设备列表。
或者, 当用户设备列表请求为一个比特时, 如果该一个比特为 0 (或 1 ), 则第一发送单元 630向基站覆盖范围内的第二用户设备发送多个用户列表中的 第一默认用户设备列表; 如果该一个比特为 1 (或 0 ), 则第一发送单元 630向基 站覆盖范围内的第二用户设备发送多个用户设备列表中的第二默认用户设备 列表。
当用户设备列表请求为多个比特时, 第一发送单元 650首先根据该多个比 特对应的分类标识确定将要发送的用户设备列表,然后向基站覆盖范围内的第 二用户设备发送上述确定的用户设备列表。
第一发送单元 650向第二用户设备发送用户设备列表的方式与实施例五中 第一发送单元 530向第二用户设备发送用户设备列表的方式相同, 在此不再赘 述。
利用本发明实施例六提供的基站, 基站将获取到的包括用户设备 D2D ID 的设备信息增添至用户设备列表中, 该用户设备列表为多个用户设备列表, 然 后向用户设备发送用户设备列表的分类标识,以使用户设备可根据自身需求向 基站请求相应的用户设备列表。基站根据用户设备列表请求向其覆盖范围内的 用户设备发送所需的用户设备列表,从而使得用户设备根据基站发送的用户设 备列表发现能与其进行 D2D通信的用户设备。
需要说明的是, 上述基站是用来实现实施例二所述的设备发现方法, 所包 括的各个单元只是按照功能逻辑进行划分的,但并不局限于上述的划分, 只要 能够实现相应的功能即可; 另外, 各功能单元的具体名称也只是为了便于相互 区分, 并不用于限制本发明的保护范围。
如 7图所示, 其为本发明实施例七所提供的一种基站的结构示意图。 该基 站包括收发机 710、存储器 720以及分别与收发机 710和存储器 720连接的处理器 730。 当然, 该基站还可以包括天线、 基带处理部件、 中射频处理部件、 输入 输出装置等通用部件, 本发明实施例在此不再任何限制。 该基站可用以实现本 发明实施例一及实施例二所述的设备发现方法。
其中, 收发机 710用于与用户设备, 其它基站等设备进行通信。
存储器 720中存储一组程序代码, 且处理器 730用于调用存储器 720中存储 的程序代码, 用于执行以下操作:
获取第一用户设备的设备信息,所述设备信息包括所述第一用户设备釆用 点对点通信时的标识符;
将所述设备信息增添到用户设备列表;
向所述基站覆盖范围内的第二用户设备发送所述用户设备列表,以使得所 述第二用户设备根据所述用户设备列表发现所述第一用户设备。
进一步地, 所述用户设备列表为一个用户设备列表或多个用户设备列表。 进一步地, 所述将所述设备信息增添到用户设备列表具体为:
当确定第一用户设备的业务量超过阔值时,将所述第一用户设备的设备信
息增添到用户设备列表; 和 /或, 当确定第一用户设备的通信模式发生变化时, 将所述第一用户设备的设备信息增添到用户设备列表; 和 /或, 在接收到第一 用户设备发送的加入用户设备列表确认消息或加入用户设备列表请求时,将所 述第一用户设备的设备信息增添到用户设备列表。
进一步地,所述向所述基站覆盖范围内的第二用户设备发送所述用户设备 列表具体为:
向所述基站覆盖范围内的且所述用户设备列表中包括的第二用户设备发 送所述用户设备列表; 或者, 向所述基站覆盖范围内的任意第二用户设备发送 所述用户设备列表。
进一步地,在所述向所述基站覆盖范围内的第二用户设备发送所述用户设 备列表之前, 处理器 730调用存储器 720中存储的程序代码,还用于执行以下操 作:
接收第二用户设备发送的获取用户设备列表请求;所述向所述基站覆盖范 围内的第二用户设备发送所述用户设备列表具体为:向发送所述获取用户设备 列表请求的第二用户设备或包括发送所述获取用户设备列表请求的第二用户 设备在内的一组第二用户设备。
进一步地,所述向所述基站覆盖范围内的第二用户设备发送所述用户设备 列表具体为:
通过广播信道或多播信道向所述第二用户设备发送所述用户设备列表; 或,通过下行控制信道向所述第二用户设备发送下行控制信息, 所述下行控制 信息携带所述用户设备列表; 或, 通过物理下行共享信道发送所述用户设备列 表; 通过下行控制信道向所述第二用户设备发送下行控制信息, 所述下行控制 信息用于指示第二用户设备在所述物理下行共享信道获取所述用户设备列表。
进一步地,所述下行控制信道包括物理下行控制信道或增强物理下行控制 信道; 所述通过下行控制信道向所述第二用户设备发送下行控制信息具体为: 通过物理下行控制信道或增强物理下行控制信道的公共或专用搜索空间向所 述第二用户设备发送下行控制信息。
进一步地, 所述用户设备列表为多个用户设备列表时,根据第一用户设备 的接入时间或第一用户设备与所述基站之间的距离或第一用户设备所在区域
对所述第一用户设备进行分类, 每一类第一用户设备组成一个用户设备列表。 进一步地,在所述向所述基站覆盖范围内的第二用户设备发送所述用户设 备列表之前, 处理器 730调用存储器 720中存储的程序代码,还用于执行以下操 作:
向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表的分 类标识; 接收所述第二用户设备发送的获取用户设备列表请求, 所述获取用户 设备列表请求携带所述第二用户设备所需的用户设备列表对应的分类标识;所 述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表具体为:向所 述基站覆盖范围内的第二用户设备发送所述获取用户设备列表请求携带的分 类标识对应的用户设备列表。
进一步地,在所述向所述基站覆盖范围内的第二用户设备发送所述用户设 备列表之前, 处理器 730调用存储器 720中存储的程序代码,还用于执行以下操 作:
向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表的分 类标识; 接收用户设备发送的用户设备列表请求, 所述用户设备列表请求携带 一个比特或多个比特, 所述多个比特对应所述分类标识; 所述向所述基站覆盖 范围内的第二用户设备发送所述用户设备列表具体为:当所述用户设备列表请 求携带一个比特时,基站根据所述一个比特确定是否向所述基站覆盖范围内的 第二用户设备发送所述多个用户设备列表中的默认用户设备列表,或者根据所 述一个比特所指示的状态发送向所述基站覆盖范围内的第二用户设备发送所 述多个用户设备列表中对应的用户设备列表;当所述用户设备列表请求携带多 个比特时,基站将所述多个比特对应的分类标识对应的用户设备列表发送至所 述基站覆盖范围内的第二用户设备。
利用本发明实施例七提供的基站, 基站将获取到的包括用户设备 D2D ID 的设备信息增添至用户设备列表中,该用户设备列表为一个或多个用户设备列 表, 然后向用户设备发送用户设备列表的分类标识, 以使用户设备可根据自身 需求向基站请求相应的用户设备列表。基站根据用户设备列表请求向其覆盖范 围内的用户设备发送所需的用户设备列表,从而使得用户设备根据基站发送的 用户设备列表发现能与其进行 D2D通信的用户设备。
下面以图 8为例详细说明本发明实施例八提供的一种用户设备,图 8为本发 明实施例八提供的一种用户设备的结构示意图。 该用户设备具有 D2D通信功 能, 用以实现发明实施例三提供的设备发现方法。 如图 8所示, 该用户设备包 括: 获取单元 810及发现单元 820。
获取单元 810用于获取用户设备列表, 该用户设备列表包括设备信息, 该 设备信息包括用户设备的 D2D通信能力, 用户设备的 D2D 标识符等。
该用户设备列表由基站发送,基站首先获取用户设备的设备信息, 然后将 设备信息增添到用户设备列表中。基站可通过接收邻区基站的用户设备列表获 取设备信息, 也可接收用户设备发送的设备信息。
因此, 该用户设备还包括第一发送单元 830, 用于向基站发送设备信息。 具体的, 用户设备可由事件触发使得第一发送单元 830向基站发送设备信 息。 例如, 当基站覆盖范围内的用户设备开机时, 当用户设备从其它小区切换 或随机接入到该基站时, 或基站覆盖范围内的用户设备点对点的业务量较大 时, 第一发送单元 830会向基站发送设备信息。 另外, 用户设备也可使得第一 发送单元 830主动向基站发送设备信息。 例如, 基站覆盖范围内的用户设备在 开机后, 用户在没选择使用 D2D功能时, 第一发送单元 830不需要向基站发送 设备信息, 当用户选择使用 D2D功能时, 第一发送单元 830再向基站发送设备 信息。 或者基站覆盖范围内的用户设备在开机或使用 D2D功能后, 询问用户是 否将该用户设备加入基站的用户设备列表中, 当用户同意加入时, 第一发送单 元 830向基站发送该用户设备的设备信息。 或者基站覆盖范围内的用户设备向 基站发送加入用户设备列表的请求, 当获得基站同意后第一发送单元 830向基 站发送该用户设备的设备信息。
另外, 该用户设备还可以包括: 第二发送单元 840, 用于向基站发送加入 用户设备列表确认消息或加入用户设备列表请求,以使得基站在接收到该加入 用户设备列表确认消息或加入用户设备列表请求时,将接收到的设备信息增添 到用户设备列表中。
获取单元 810可直接获取基站发送的用户设备列表。 或者, 该装置还包括 第三发送单元 850, 在获取单元 810获取用户设备列表之前, 第三发送单元 850 向基站发送获取用户设备列表请求, 以使基站在接收到该获取用户设备列表
后, 向其覆盖范围内的用户设备发送用户设备列表。
可选地, 获取单元 810通过广播信道或多播信道获取基站发送的用户设备 列表。
可选地, 获取单元 810通过物理下行控制信道或增强物理下行控制信道的 公共搜索空间或专用搜索空间获取基站发送的下行控制信道,该下行信道控制 信息携带有用户设备列表。
可选地, 获取单元 810通过物理下行控制信道或增强物理下行控制信道的 公共搜索空间或专用搜索空间获取下行控制信息,该下行控制信息携带有指示 标识, 然后获取单元 810根据该指示标识从物理下行共享信道获取基站发送的 用户设备列表。
发现单元 820用于根据获取到的用户设备列表发现用户设备。
发现单元 820根据获取到的用户设备列表发现能与其进行 D2D通信的用户 设备。
利用本发明实施例八提供的用户设备,用户设备获取到包括设备信息的用 户设备列表后, 由于该设备信息包括用户设备 D2D ID, 因此用户设备根据该 用户设备列表发现能与其进行 D2D通信的用户设备。
需要说明的是, 上述用户设备是用来实现实施例三所述的设备发现方法, 所包括的各个单元只是按照功能逻辑进行划分的, 但并不局限于上述的划分, 只要能够实现相应的功能即可; 另外, 各功能单元的具体名称也只是为了便于 相互区分, 并不用于限制本发明的保护范围。
下面以图 9为例详细说明本发明实施例九提供的一种用户设备,图 9为本发 明实施例九提供的一种用户设备的结构示意图。 该用户设备具有 D2D通信功 能, 用以实现发明实施例四提供的设备发现方法。 如图 9所示, 该用户设备包 括: 接收单元 910, 第一发送单元 920, 第三发送单元 930、 获取单元 940及获取 单元 950。
接收单元 910用于接收基站发送的子用户设备列表的分类标识。
用户设备列表包括设备信息, 该设备信息可包括: 用户设备的 D2D通信能 力, 用户设备的 D2D 标识符等。
用户设备列表为多个用户设备列表,每个用户设备列表具有分类标识。 多
个用户设备列表的分类方式不限。例如,将本小区内的用户设备的设备信息分 为一个用户设备列表,将各个邻区内的用户设备的设备信息分别分为一个用户 设备列表; 或者, 按照加入到用户设备列表的时间进行分类; 或者按照用户设 备与基站之间的距离进行分类; 或者将基站所覆盖的区域分成多个子区域,每 个子区域内的用户设备对应的设备信息作为一个用户设备列表。
另夕卜,基站可通过接收邻区基站的用户设备列表获取设备信息, 也可接收 用户设备发送的设备信息。
因此, 第一发送单元 920用于用户设备向基站发送设备信息。
具体的, 用户设备可由事件触发使得第一发送单元 920向基站发送设备信 息。 例如, 当基站覆盖范围内的用户设备开机时, 当用户设备从其它小区切换 或随机接入到该基站时, 或基站覆盖范围内的用户设备点对点的业务量较大 时, 第一发送单元 920会向基站发送设备信息。 另外, 用户设备也可使得第一 发送单元 920主动向基站发送设备信息。 例如, 基站覆盖范围内的用户设备在 开机后, 用户在没选择使用 D2D功能时, 第一发送单元 920不需要向基站发送 设备信息, 当用户选择使用 D2D功能时, 第一发送单元 920再向基站发送设备 信息。 或者基站覆盖范围内的用户设备在开机或使用 D2D功能后, 询问用户是 否将该用户设备加入基站的用户设备列表中, 当用户同意加入时, 第一发送单 元 920向基站发送该用户设备的设备信息。 或者基站覆盖范围内的用户设备向 基站发送加入用户设备列表的请求, 当获得基站同意后第一发送单元 920向基 站发送该用户设备的设备信息。
另外, 该用户设备还可以包括: 第二发送单元 960, 用于向基站发送加入 用户设备列表确认消息或加入用户设备列表请求,以使得基站在接收到该加入 用户设备列表确认消息或加入用户设备列表请求时,将接收到的设备信息增添 到用户设备列表中。
第三发送单元 930向基站发送获取用户设备列表请求。
可选地,该获取用户设备列表请求携带用户设备所需的用户设备列表对应 的分类标识, 以使基站根据接收到的分类标识, 向基站覆盖范围内的用户设备 发送相应的用户设备列表。
可选地, 该获取用户设备列表请求携带一个比特或多个比特。一个比特用
于指示基站是否向基站覆盖范围内的用户设备发送多个用户设备列表中的默 认用户设备列表,或者用于指示基站根据一个比特所指示的状态向基站覆盖范 围内的用户设备发送多个用户设备列表中对应的用户设备列表,其中默认用户 设备列表可以是一个、多个或所有用户设备列表。例如, 当该一个比特为 0 (或 1 ) 时, 指示基站不向基站覆盖范围内的用户设备发送任何用户设备列表; 当 该一个比特为 1 (或 0 ), 指示基站向基站覆盖范围内的用户设备发送多个用户 设备列表中的默认用户设备列表。 或者, 当用户设备列表请求为一个比特时, 如果该一个比特为 0 (或 1 ), 则基站向基站覆盖范围内的用户设备发送第一默 认用户设备列表; 如果该一个比特为 1 (或 0 ), 则指示基站向指示基站覆盖范 围内的用户设备发送第二默认用户设备列表。 多个比特对应分类标识, 用于指 示基站根据该多个比特对应的分类标识确定向用户设备发送的用户设备列表。 例如, 基站内有 8个用户设备列表, 那么该多个比特为 3个比特, 其中 000对应 用户设备列表 1的分类标识, 001对应用户设备列表 2的分类标识, 010对应用户 设备列表 3的分类标识, 以此类推。
获取单元 940用于获取基站发送的用户设备列表。
获取单元 940获取用户设备列表的方式与实施例八中获取单元 810获取用 户设备列表的过程相同, 在此不再赘述。
发现单元 950用于根据获取的用户设备列表发现用户设备。
发现单元 950根据获取到的用户设备列表发现能与其进行 D2D通信的用户 设备。
利用本发明实施例九提供的用户设备,基站中的用户设备列表为一个或多 个用户设备列表, 用户设备接收基站发送的用户设备列表的分类标识, 然后根 据自身需求向基站请求相应的用户设备列表,接收基站根据用户设备列表请求 向发送的用户设备列表,由于用户设备列表中的设备信息包括用户设备的 D2D ID,因此用户设备可根据基站发送的用户设备列表发现能与其进行 D2D通信的 用户设备。
需要说明的是, 上述用户设备是用来实现实施例四所述的设备发现方法, 所包括的各个单元只是按照功能逻辑进行划分的, 但并不局限于上述的划分, 只要能够实现相应的功能即可; 另外, 各功能单元的具体名称也只是为了便于
相互区分, 并不用于限制本发明的保护范围。
如 10图所示, 其为本发明实施例十所提供的一种用户设备的结构示意图。 该用户设备包括收发机 1010、存储器 1020以及分别与收发机 1010和存储器 1020 连接的处理器 1030。 当然, 该用户设备还可以包括天线、 基带处理部件、 中射 频处理部件、 输入输出装置等通用部件, 本发明实施例在此不再任何限制。 该 用户设备可用以实现本发明实施例三及实施例四所述的设备发现方法。
其中, 收发机 1010用于与基站等设备进行通信。
存储器 1020中存储一组程序代码,且处理器 1030用于调用存储器 1020中存 储的程序代码, 用于执行以下操作:
获取基站发送的用户设备列表,所述用户设备列表包括多个用户设备的设 备信息, 所述设备信息包括所述用户设备釆用点对点通信时的标识符;
根据所述用户设备列表发现用户设备。
进一步地, 所述用户设备列表为一个用户设备列表或多个用户设备列表。 进一步地, 所述获取基站发送的用户设备列表具体为:
通过广播信道或多播信道获取基站发送的所述用户设备列表; 或, 通过下 行控制信道获取基站发送的下行控制信息,所述下行控制信息携带有所述用户 设备列表; 或, 通过下行控制信道获取基站发送下行控制信息, 所述下行控制 信息携带有指示标识;根据所述指示标识从物理下行共享信道获取基站发送的 所述用户设备列表。
进一步地,所述下行控制信道包括物理下行控制信道或增强物理下行控制 信道; 所述通过下行控制信道获取基站发送的下行控制信息具体为: 通过物理 下行控制信道或增强物理下行控制信道的公共或专用搜索空间获取基站发送 的下行控制信息。
进一步地, 所述用户设备列表为多个用户设备列表时,在所述获取基站发 送的用户设备列表之前, 处理器 1030调用存储器 1020中存储的程序代码,还用 于执行以下操作:
接收基站发送的所述多个用户设备列表的分类标识;向所述基站发送获取 用户设备列表请求,所述获取用户设备列表请求携带所需的用户设备列表的分 类标识,用以基站向所述基站覆盖范围内的用户设备发送所述分类标识对应的
用户设备列表。
进一步地, 所述用户设备列表为多个用户设备列表时,在所述获取基站发 送的用户设备列表之前, 处理器 1030调用存储器 1020中存储的程序代码,还用 于执行以下操作:
接收基站发送的所述多个用户设备列表的分类标识;向所述基站发送获取 用户设备列表请求, 所述获取用户设备列表请求携带一个比特或多个比特, 所 述多个比特对应所述分类标识; 所述一个比特用于指示基站是否向所述基站 覆盖范围内的用户设备发送所述多个用户设备列表中的默认用户设备列表,或 者用于指示基站根据所述一个比特所指示的状态向所述基站覆盖范围内的用 户设备发送所述多个用户设备列表中对应的用户设备列表;所述多个比特用于 指示基站向所述基站覆盖范围内的用户设备发送所述多个比特对应的分类标 识对应的用户设备列表。
利用本发明实施例十提供的用户设备,基站中的用户设备列表包括多个子 用户设备列表, 用户设备接收基站发送的子用户设备列表的分类标识, 然后根 据自身需求向基站请求用户设备列表或相应的子用户设备列表,接收基站根据 用户设备列表请求向发送的用户设备列表或子用户设备列表,由于用户设备列 表或子用户设备列表中的设备信息包括用户设备的 D2D ID, 因此用户设备可 根据基站发送的用户设备列表或子用户设备列表发现能与其进行 D2D通信的 用户设备。
专业人员应该还可以进一步意识到,结合本文中所公开的实施例描述的各 示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现, 为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地 描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行,取决 于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用 来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范 围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器 执行的软件模块, 或者二者的结合来实施。 软件模块可以置于随机存储器 ( RAM ), 内存、只读存储器(ROM )、 电可编程 ROM、 电可擦除可编程 ROM、
寄存器、 硬盘、 可移动磁盘、 CD-ROM、 或技术领域内所公知的任意其它形式 的存储介质中。
以上所述的具体实施方式,对本发明的目的、技术方案和有益效果进行了 进一步详细说明, 所应理解的是, 以上所述仅为本发明的具体实施方式而已, 并不用于限定本发明的保护范围, 凡在本发明的精神和原则之内, 所做的任何 修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
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Claims
1、 一种用户设备发现方法, 其特征在于, 所述方法包括:
基站获取第一用户设备的设备信息,所述设备信息包括所述第一用户设备 釆用点对点通信时的标识符;
基站将所述设备信息增添到用户设备列表;
基站向所述基站覆盖范围内的第二用户设备发送所述用户设备列表,以使 得所述第二用户设备根据所述用户设备列表发现所述第一用户设备。
2、 根据权利要求 1所述的方法, 其特征在于, 所述用户设备列表为一个 用户设备列表或多个用户设备列表。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 所述将所述设备信息 增添到用户设备列表具体为:
当确定第一用户设备的业务量超过阔值时,将所述第一用户设备的设备信 息增添到用户设备列表; 和 /或,
当确定第一用户设备的通信模式发生变化时,将所述第一用户设备的设备 信息增添到用户设备列表; 和 /或,
在接收到第一用户设备发送的加入用户设备列表确认消息或加入用户设 备列表请求时, 将所述第一用户设备的设备信息增添到用户设备列表。
4、 根据权利要求 1-3任一所述的方法, 其特征在于, 所述向所述基站覆 盖范围内的第二用户设备发送所述用户设备列表具体为:
向所述基站覆盖范围内的且所述用户设备列表中包括的第二用户设备发 送所述用户设备列表; 或者,
向所述基站覆盖范围内的任意第二用户设备发送所述用户设备列表。
5、 根据权利要求 1-3任一所述的方法, 其特征在于, 在所述向所述基站 覆盖范围内的第二用户设备发送所述用户设备列表之前, 所述方法还包括: 接收第二用户设备发送的获取用户设备列表请求;
所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表具体 为:
向发送所述获取用户设备列表请求的第二用户设备或包括发送所述获取 用户设备列表请求的第二用户设备在内的一组第二用户设备。
6、 根据权利要求 1-3任一所述的方法, 其特征在于, 所述向所述基站覆 盖范围内的第二用户设备发送所述用户设备列表具体为:
通过广播信道或多播信道向所述第二用户设备发送所述用户设备列表; 或,
通过下行控制信道向所述第二用户设备发送下行控制信息,所述下行控制 信息携带所述用户设备列表; 或,
通过物理下行共享信道发送所述用户设备列表;通过下行控制信道向所述 第二用户设备发送下行控制信息,所述下行控制信息用于指示第二用户设备在 所述物理下行共享信道获取所述用户设备列表。
7、 根据权利要求 6所述的方法, 其特征在于, 所述下行控制信道包括物 理下行控制信道或增强物理下行控制信道;
所述通过下行控制信道向所述第二用户设备发送下行控制信息具体为:通 过物理下行控制信道或增强物理下行控制信道的公共或专用搜索空间向所述 第二用户设备发送下行控制信息。
8、 根据权利要求 2所述的方法, 其特征在于, 所述用户设备列表为多个 用户设备列表时,根据第一用户设备的接入时间或第一用户设备与所述基站之 间的距离或第一用户设备所在区域对所述第一用户设备进行分类,每一类第一 用户设备组成一个用户设备列表。
9、 根据权利要求 8所述的方法, 其特征在于, 在所述向所述基站覆盖范 围内的第二用户设备发送所述用户设备列表之前, 所述方法还包括:
向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表的分 类标识;
接收所述第二用户设备发送的获取用户设备列表请求,所述获取用户设备 列表请求携带所述第二用户设备所需的用户设备列表对应的分类标识;
所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表具体 为:
向所述基站覆盖范围内的第二用户设备发送所述获取用户设备列表请求 携带的分类标识对应的用户设备列表。
10、 根据权利要求 8所述的方法, 其特征在于, 在所述向所述基站覆盖范 围内的第二用户设备发送所述用户设备列表之前, 所述方法还包括:
向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表的分 类标识;
接收用户设备发送的用户设备列表请求,所述用户设备列表请求携带一个 比特或多个比特, 所述多个比特对应所述分类标识;
所述向所述基站覆盖范围内的第二用户设备发送所述用户设备列表具体 为:
当所述用户设备列表请求携带一个比特时,基站根据所述一个比特确定是 否向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表中的默 认用户设备列表,或者根据所述一个比特所指示的状态发送向所述基站覆盖范 围内的第二用户设备发送所述多个用户设备列表中对应的用户设备列表; 当所述用户设备列表请求携带多个比特时,基站将所述多个比特对应的分 类标识对应的用户设备列表发送至所述基站覆盖范围内的第二用户设备。
11、 一种用户设备发现方法, 其特征在于, 所述方法包括:
获取基站发送的用户设备列表,所述用户设备列表包括多个用户设备的设 备信息, 所述设备信息包括所述用户设备釆用点对点通信时的标识符;
根据所述用户设备列表发现用户设备。
12、 根据权利要求 11所述的方法, 其特征在于, 所述用户设备列表为一 个用户设备列表或多个用户设备列表。
13、 根据权利要求 11或 12所述的方法, 其特征在于, 所述获取基站发送 的用户设备列表具体为:
通过广播信道或多播信道获取基站发送的所述用户设备列表; 或, 通过下行控制信道获取基站发送的下行控制信息,所述下行控制信息携带 有所述用户设备列表; 或,
通过下行控制信道获取基站发送下行控制信息,所述下行控制信息携带有 指示标识;根据所述指示标识从物理下行共享信道获取基站发送的所述用户设 备列表。
14、 根据权利要求 13所述的方法, 其特征在于, 所述下行控制信道包括 物理下行控制信道或增强物理下行控制信道;
所述通过下行控制信道获取基站发送的下行控制信息具体为:通过物理下 行控制信道或增强物理下行控制信道的公共或专用搜索空间获取基站发送的
下行控制信息。
15、 根据权利要求 12所述的方法, 其特征在于, 所述用户设备列表为多 个用户设备列表时,在所述获取基站发送的用户设备列表之前, 所述方法还包 括:
接收基站发送的所述多个用户设备列表的分类标识;
向所述基站发送获取用户设备列表请求,所述获取用户设备列表请求携带 所需的用户设备列表的分类标识,用以基站向所述基站覆盖范围内的用户设备 发送所述分类标识对应的用户设备列表。
16、 根据权利要求 12所述的方法, 其特征在于, 所述用户设备列表为多 个用户设备列表时,在所述获取基站发送的用户设备列表之前, 所述方法还包 括:
接收基站发送的所述多个用户设备列表的分类标识;
向所述基站发送获取用户设备列表请求,所述获取用户设备列表请求携带 一个比特或多个比特, 所述多个比特对应所述分类标识;
所述一个比特用于指示基站是否向所述基站覆盖范围内的用户设备发送 所述多个用户设备列表中的默认用户设备列表,或者用于指示基站根据所述一 个比特所指示的状态向所述基站覆盖范围内的用户设备发送所述多个用户设 备列表中对应的用户设备列表;
所述多个比特用于指示基站向所述基站覆盖范围内的用户设备发送所述 多个比特对应的分类标识对应的用户设备列表。
17、 一种基站, 其特征在于, 所述基站包括:
获取单元, 用于获取第一用户设备的设备信息, 所述设备信息包括所述第 一用户设备釆用点对点通信时的标识符;
增添单元, 用于将所述设备信息增添到用户设备列表;
第一发送单元,用于向所述基站覆盖范围内的第二用户设备发送所述用户 设备列表,以使得所述第二用户设备根据所述用户设备列表发现所述第一用户 设备。
18、 根据权利要求 17所述的基站, 其特征在于, 所述用户设备列表为一 个用户设备列表或多个用户设备列表。
19、 根据权利要求 17或 18所述的基站, 其特征在于, 所述增添单元具体 用于:
当确定第一用户设备的业务量超过阔值时,将所述第一用户设备的设备信 息增添到用户设备列表; 和 /或,
当确定第一用户设备的通信模式发生变化时,将所述第一用户设备的设备 信息增添到用户设备列表; 和 /或,
在接收到第一用户设备发送的加入用户设备列表确认消息或加入用户设 备列表请求时, 将所述第一用户设备的设备信息增添到用户设备列表。
20、 根据权利要求 17-19任一所述的基站, 其特征在于, 所述第一发送单 元具体用于:
向所述基站覆盖范围内的且所述用户设备列表中包括的第二用户设备发 送所述用户设备列表; 或者,
向所述基站覆盖范围内的任意第二用户设备发送所述用户设备列表
21、根据权利要求 17-19任一所述的基站,其特征在于,所述基站还包括: 接收单元, 用于接收第二用户设备发送的获取用户设备列表请求; 所述第一发送单元具体用于向发送所述获取用户设备列表请求的第二用 户设备或包括发送所述获取用户设备列表请求的第二用户设备在内的一组第 二用户设备。
22、 根据权利要求 17-19任一所述的基站, 其特征在于, 所述第一发送单 元具体用于:
通过广播信道或多播信道向所述第二用户设备发送所述用户设备列表; 或,
通过下行控制信道向所述第二用户设备发送下行控制信息,所述下行控制 信息携带所述用户设备列表; 或,
通过物理下行共享信道发送所述用户设备列表;通过下行控制信道向所述 第二用户设备发送下行控制信息,所述下行控制信息用于指示第二用户设备在 所述物理下行共享信道获取所述用户设备列表。
23、 根据权利要求 22所述的基站, 其特征在于, 所述下行控制信道包括 物理下行控制信道或增强物理下行控制信道;
所述通过下行控制信道向所述第二用户设备发送下行控制信息具体为:通
过物理下行控制信道或增强物理下行控制信道的公共或专用搜索空间向所述 第二用户设备发送下行控制信息。
24、 根据权利要求 18所述的基站, 其特征在于, 所述用户设备列表为多 个用户设备列表时,根据第一用户设备的接入时间或第一用户设备与所述基站 之间的距离或第一用户设备所在区域对所述第一用户设备进行分类,每一类第 一用户设备组成一个用户设备列表。
25、 根据权利要求 24所述的基站, 其特征在于, 所述基站还包括: 第二发送单元,用于向所述基站覆盖范围内的第二用户设备发送所述多个 用户设备列表的分类标识;
接收单元, 用于接收所述第二用户设备发送的获取用户设备列表请求, 所 述获取用户设备列表请求携带所述第二用户设备所需的用户设备列表对应的 分类标识;
所述第一发送单元具体用于:
向所述基站覆盖范围内的第二用户设备发送所述获取用户设备列表请求 携带的分类标识对应的用户设备列表。
26、 根据权利要求 24所述的基站, 其特征在于, 所述基站还包括: 第二发送单元,用于向所述基站覆盖范围内的第二用户设备发送所述多个 用户设备列表的分类标识;
接收单元, 用于接收用户设备发送的用户设备列表请求, 所述用户设备列 表请求携带一个比特或多个比特, 所述多个比特对应所述分类标识;
所述第一发送单元具体用于:
当所述用户设备列表请求携带一个比特时,基站根据所述一个比特确定是 否向所述基站覆盖范围内的第二用户设备发送所述多个用户设备列表中的默 认用户设备列表,或者根据所述一个比特所指示的状态发送向所述基站覆盖范 围内的第二用户设备发送所述多个用户设备列表中对应的用户设备列表; 当所述用户设备列表请求携带多个比特时,基站将所述多个比特对应的分 类标识对应的用户设备列表发送至所述基站覆盖范围内的第二用户设备。
27、 一种用户设备, 其特征在于, 所述用户设备包括:
获取单元, 用于获取基站发送的用户设备列表, 所述用户设备列表包括多 个用户设备的设备信息,所述设备信息包括所述用户设备釆用点对点通信时的
标识符;
发现单元, 用于根据所述用户设备列表发现用户设备。
28、 根据权利要求 27所述的用户设备, 其特征在于, 所述用户设备列表 为一个用户设备列表或多个用户设备列表。
29、 根据权利要求 27或 28所述的用户设备, 其特征在于, 所述获取单元 具体用于:
通过广播信道或多播信道获取基站发送的所述用户设备列表; 或, 通过下行控制信道获取基站发送的下行控制信息,所述下行控制信息携带 有所述用户设备列表; 或,
通过下行控制信道获取基站发送下行控制信息,所述下行控制信息携带有 指示标识;根据所述指示标识从物理下行共享信道获取基站发送的所述用户设 备列表。
30、 根据权利要求 29所述的用户设备, 其特征在于, 所述下行控制信道 包括物理下行控制信道或增强物理下行控制信道;
所述通过下行控制信道获取基站发送的下行控制信息具体为:通过物理下 行控制信道或增强物理下行控制信道的公共或专用搜索空间获取基站发送的 下行控制信息。
31、 根据权利要求 28所述的用户设备, 其特征在于, 所述用户设备还包 括:
接收单元, 用于在所述用户设备列表为多个用户设备列表时,接收基站发 送的所述多个用户设备列表的分类标识;
第二发送单元, 用于向所述基站发送用户设备列表请求, 所述用户设备列 表请求携带所需的用户设备列表的分类标识,用以基站向所述基站覆盖范围内 的用户设备发送所述分类标识对应的用户设备列表。
32、 根据权利要求 28所述的用户设备, 其特征在于, 所述用户设备还包 括:
接收单元, 用于在所述用户设备列表为多个用户设备列表时,接收基站发 送的所述多个用户设备列表的分类标识;
第二发送单元, 用于向所述基站发送获取用户设备列表请求, 所述获取用 户设备列表请求携带一个比特或多个比特, 所述多个比特对应所述分类标识;
所述一个比特用于指示基站是否向所述基站覆盖范围内的用户设备发送 所述多个用户设备列表中的默认用户设备列表,或者用于指示基站根据所述一 个比特所指示的状态向所述基站覆盖范围内的用户设备发送所述多个用户设 备列表中对应的用户设备列表;
所述多个比特用于指示基站向所述基站覆盖范围内的用户设备发送所述 多个比特对应的分类标识对应的用户设备列表。
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